#help-4

1 messages Β· Page 34 of 1

stark wedge
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do you think Zoe is right or do you think she's wrong

verbal sentinel
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i dont know what the statment is even saying

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where did shoe size come from

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im confused

stark wedge
#

you're given extra info in part b: among your 25 women, 3 of them have shoe size 7.

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Zoe says,

"The probability that a randomly selected woman from our group has shoe size 7 or dress size 14 is 3/25+6/25=9/25."

verbal sentinel
#

there is no dress size 7 tho

stark wedge
#

who said anything about dress size 7?

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are you getting your wires crossed?

verbal sentinel
#

ok i read that wrong

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yh

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then she is not wrong

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bc from the the table is 6/25+3/25 as she stated

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which is 9/25

stark wedge
#

ok that's gonna be a nope

final adder
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but what about the women who have both shoe size 7 and dress size 14?

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they would be counted twice, no?

verbal sentinel
#

yh

verbal sentinel
final adder
#

why would you multiply?

stark wedge
#

tfw memorized "and means multiply"...

verbal sentinel
final adder
#

this is a set theory "or"

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aka a union of sets

verbal sentinel
#

but zoe says or so 1 of then condition need to be met

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we are saying what about the people that have shoe size 7 and dress 14 zoe didnt say and

safe fulcrum
#

so here for example

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there's 5 + 6 = 11 people who play hockey

verbal sentinel
#

yes

safe fulcrum
#

and 6 + 3 = 9 people who do gymnastics

verbal sentinel
#

yes

safe fulcrum
#

so if the left circle = shoe size of 7 and right circle = dress size of 14

#

you can't just add both circles and call it a day

verbal sentinel
#

no

safe fulcrum
#

you'd be double counting

you'd have something like (5 + 6) + (6 + 3)

safe fulcrum
verbal sentinel
#

u dont add

final adder
#

but lets just say you were given that 11 people play hockey, and 9 people do gymnastics, but 6 people do both

safe fulcrum
safe fulcrum
#

then that would be all good

verbal sentinel
#

yh

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bc 6 come together

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both

safe fulcrum
#

you just need to subtract 6

verbal sentinel
#

yes

safe fulcrum
#

you just need to subtract the middle (the intersection of both)

verbal sentinel
#

ye

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so how about zoe

safe fulcrum
#

based on what we discussed

verbal sentinel
#

😭

safe fulcrum
#

the point is we don't know how many people have both that dress size and shoe size

verbal sentinel
#

we dont know the shoe size people

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but we know dress

safe fulcrum
#

exactly

verbal sentinel
#

is 6

safe fulcrum
#

but what happens if the intersection has 1 person?

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2 people?

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5 people?

safe fulcrum
#

all 25 people??

verbal sentinel
#

we substract

safe fulcrum
#

yeah

verbal sentinel
#

them

safe fulcrum
#

so then it wouldn't be 9/25 right?

verbal sentinel
#

yh

safe fulcrum
#

it'd be something less than that, more specifically

verbal sentinel
#

but there might be people in the middle

safe fulcrum
verbal sentinel
#

we dont know

safe fulcrum
verbal sentinel
verbal sentinel
safe fulcrum
#

"Zoe is incorrect; she didn't subtract the intersection"

verbal sentinel
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both the people can have shoe size 7 and dress size 14

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smth like tht

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?

verbal sentinel
#

thats fine

safe fulcrum
#

there may be people with shoe size 7 and dress size 14

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that would also work

verbal sentinel
#

yes thank you for your time

safe fulcrum
#

no worries!!

verbal sentinel
#

.close

vale dockBOT
#
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vale dockBOT
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signal chasm
#

help

vale dockBOT
signal chasm
#

im really

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slow on this

stark wedge
#

which step do you think is invalid, if any?

modest kettle
signal chasm
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i didnt really think

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none of them were invalid

modest kettle
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for inequalities

signal chasm
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but turns out

stark wedge
signal chasm
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the first ones wrong

stark wedge
#

ah fuck

modest kettle
stark wedge
#

wrong reply

modest kettle
#

πŸ’”

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anyways

stark wedge
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yeah sorry i misclicked

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don't call me "bro"

modest kettle
#

logarithms are monotonic

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meaning always increasing or decreasing

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perfect for inequality abuse

stark wedge
#

logarithmic functions with base between 0 and 1 are decreasing

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to be more specific

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so you would need to reverse the sign

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@signal chasm still here?

signal chasm
#

idrk where we going with this

stark wedge
#

can you delete or edit this msg

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also reread what i wrote earlier

signal chasm
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it doesnt matter right

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cos

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well

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the left side

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gna equal to 2 or greater

stark wedge
#

.....

signal chasm
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and the right

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will be less than that

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so is that

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the wrong step?

stark wedge
stark wedge
#

how what.

modest kettle
signal chasm
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wait.

rocky lotusBOT
modest kettle
#

this is because in that range the logarithm is an increasing function

signal chasm
#

wait

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do all log graohs

modest kettle
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on the contrary if n is between 0 and 1

signal chasm
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cross x axis

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at same point

modest kettle
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yes

signal chasm
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which is

modest kettle
#

why ask that

signal chasm
#

well

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wait it crosses at what

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how do u work that out

signal chasm
#

u can see

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so

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well

modest kettle
signal chasm
#

yk the right hand side is gna be 6

modest kettle
#

at (1, 0)

signal chasm
#

and if its n=1 by any chance

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that means x=2

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so

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both of these coordinates

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are to the right

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of 1,0

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meaning a negative y

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so that means

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the sign should flip

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when using the logs

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is that logic correct?

modest kettle
signal chasm
signal chasm
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cos n has to be a positive integer

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so the left hand side smallest value possible can be 2

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both points must be on the right side of x intercept

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meaning y value is negative

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so the overall log value

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is negative

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so sign should switch right?

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idk

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if that makes sense

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or not

modest kettle
signal chasm
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ok

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so

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log 1/2 to the 1/4

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=2 right

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wait

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im an idiot

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i think

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i confused myself

modest kettle
#

so that step is actually correct

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the tomfoolery happens when you bring a logarithm on both sides

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you know 1/4 < 1/2

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but is $log_{1/2} 1/4 < log_{1/2} 1/2$?

rocky lotusBOT
signal chasm
#

erm

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no

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bro

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i dont get this

modest kettle
vale dockBOT
#

@signal chasm Has your question been resolved?

vale dockBOT
#
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worldly stirrup
#

why are these the values for x

vale dockBOT
worldly stirrup
#

the fractional part of x when k=2,4,6,8

#

why is it 1/2,1/4,2/4,3/4,....

rough talon
#

whats the original question?

distant steppe
#

gm

craggy girder
#

@worldly stirrup pls send a ss of the whole thing

#

this doesnt give enough context

vale dockBOT
#

@worldly stirrup Has your question been resolved?

vale dockBOT
#
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vale dockBOT
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midnight pier
tawny moon
#

you've opened this channel btw

#

remember to close it when you're done, unless you have a question

midnight pier
#

Sorry :p

tawny moon
#

!done

vale dockBOT
#

If you are done with this channel, please mark your problem as solved by typing .close

midnight pier
#

.close

vale dockBOT
#
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vale dockBOT
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Available help channel!

Send your question here to claim the channel.

Remember:
β€’ Ask your math question in a clear, concise manner.
β€’ Show your work, and if possible, explain where you are stuck.
β€’ After 15 minutes, feel free to ping <@&286206848099549185>.
β€’ Type the command .close to free the channel when you're done.
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gilded timber
#

hi, need help finishing this need to make a drawing using various things on desmos trying to make a bear please help me finish it!!

gilded timber
oak crane
#

thats so cute

gilded timber
#

this assignemnt is actaully pissing me off likec razy

oak crane
#

u are asked to make this on desmos?

fickle rose
#

(btw you can add images in desmos for easier reference)

gilded timber
#

yes

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ik

opal pendant
#

Ngl just use chatgpt

gilded timber
#

bro i alr tried LOL

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he gets hella confused and the equations never work

opal pendant
#

"He" is crazy πŸ’€

gilded timber
#

mb

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they them

oak crane
#

its really bad advice

gilded timber
#

okay so i have my three circles right

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and im missing everything else?

oak crane
rocky lotusBOT
#

をキラ (>⩊<)

oak crane
#

and i can move the points closer to the image

gilded timber
#

r u joing im cnfused

#

when i copy and paste that it doesnt work

opal pendant
oak crane
#

let me share my sample

gilded timber
#

okay let me elaborate i have 0 knowledge of what i am doing!

oak crane
#

just a sample πŸ™‚

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once u do that u can hide the points when u make ur equation

gilded timber
#

okay but i have 0 idea on how to do that

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theres not like an equation i can just copy and paste?

oak crane
#

first try writing up 3 points

gilded timber
oak crane
gilded timber
#

wth is a point

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like a coord?

oak crane
#

ya

gilded timber
#

uh theres a yellow triangle

turbid valve
oak crane
#

I forgor

rocky lotusBOT
#

をキラ (>⩊<)

turbid valve
#

he's a fan of me!? flonshed /s

#

idk whether to be grateful or fearful

oak crane
#

idk about that

gilded timber
#

so how do i put that into desmois

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also how di i make it so this parabola ends at a certain point?

oak crane
#

something like this $y = x^2 {0 \leq x \leq 3}$ for example

rocky lotusBOT
#

をキラ (>⩊<)

gilded timber
oak crane
#

u need to add {}

gilded timber
#

ohh

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wheres the other side LOL

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like i literally have no idea how these numbers work

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if i dont do this today i get kicked out of college so im like tweaking out rn'

oak crane
#

ah shit

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let me do something rq

timid wagon
gilded timber
#

okay how do i get it lower LOL

oak crane
#

are u familiar with parabolas?

#

u could do this $y=x^{2}\left{-1<\ x\le1\ \right}-5$

rocky lotusBOT
#

をキラ (>⩊<)

gilded timber
#

no! i am not

gilded timber
#

ok how do i get that into my freaking desmos

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my keyboard doesnt work that way

oak crane
#

freaking desmos?

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wdym

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dont tell me ur just copying things

gilded timber
#

u said to try that no?

oak crane
#

i never said copy it tho

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sometimes it doesn't work

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u have to type it

gilded timber
#

okay did it

#

bro looks so happy

oak crane
#

ya u can play around with desmos until u get it πŸ™‚

river shale
gilded timber
#

can i get some like lines

oak crane
#

also do u mind giving me ur thing i wanna test the triangles

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here's how u could start with triangles

gilded timber
fickle rose
oak crane
#

i gotta go something come up sadcat

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u can continue lama

gilded timber
#

i just need a c

fickle rose
#

a c where?

gilded timber
#

on the grade

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lol

fickle rose
#

oh I thought you meant an actual c on the graph 😭

#

alr well then let's shoot for an A catthumbsup

gilded timber
#

at this rate

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im not sure

fickle rose
#

nah you got this, lock in

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so what company logo are you drawing?

midnight pier
#

parabolas ftw

gilded timber
#

bruh

#

i just realized it needs to be a logo and not any drawing

#

omg im gonna cry

#

what logos have a bear πŸ™

midnight pier
#

make mcdonalds logo

gilded timber
#

wont fit the requirements

midnight pier
#

what r they

fickle rose
gilded timber
midnight pier
#

damn

#

I'd go insane if i had to do this

gilded timber
#

dude i am

#

like actaully having a breakdown

midnight pier
#

I'd be dead by now

gilded timber
#

and get this!!!

#

if i dont do this plus 150 other questions of hw plus 5 more assignments with the same type of vibe i cant go to college !!

#

all due tonight btw.

midnight pier
#

honestly?

#

You are cooked.

gilded timber
#

bro

vale dockBOT
#

@gilded timber Has your question been resolved?

gilded timber
#

.close

vale dockBOT
#
Channel closed

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#
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Remember:
β€’ Ask your math question in a clear, concise manner.
β€’ Show your work, and if possible, explain where you are stuck.
β€’ After 15 minutes, feel free to ping <@&286206848099549185>.
β€’ Type the command .close to free the channel when you're done.
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Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

brave urchin
#

heya. if i have this equation: x^3-x^2-3^(x-1)+4^(x-1)=0 , can I do anything with those simmilar powers?

brave urchin
#

i know common bases disappear when the exponents are the same when equating two terms, but i'm not sure if theres any of that magic i can pull here

#

it also looks to be a polynomial with a 3rd degree as the highest, and we've not done too many of those

vast dove
#

It is NOT a polynomial

brave urchin
#

hmm

vast dove
#

This seems quite difficult on first inspection

brave urchin
#

okay i might have gone about it wrong

#

let me restart with the problem

#

i have to prove the continuity of a function on the R interval. the function takes two forms: x^2+3^(x-1) and x^3 + 4^(x-1). to prove that it's continuuous, i have to prove those two are equal

ebon glade
#

well there is an obvious solution

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which turns out to be the only one

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but thats not obvious

#

you definitely fucked up the question

#

cause that makes no sense

brave urchin
#

i have to prove those two are equal... when x goes towards 1

ebon glade
#

ok so a completely different question

brave urchin
#

it's the continuity question

ebon glade
#

well the limit x->1 for both functions is easy to calculate

brave urchin
#

yeah... i got the answer 2=2 which proves it's continuous

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but i need to find all the x's in which it is

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eyeballing it gives me one and zero i believe

ebon glade
#

can you post the original statement please

brave urchin
#

okay

#

Determine the interval of points where the following function is continuous: f:R->R, f(x)={x^2 + 3^(x-1) x is < than 1
{x^3 + 4^(x-1) , x is > or = to 1

ebon glade
#

its continuous for all x!=1 by just general knowledge of continuous functions

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so you only need to care about x=1

brave urchin
#

i see

#

i think the interval thing threw me off

#

thanks

#

.close

vale dockBOT
#
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Send your question here to claim the channel.

Remember:
β€’ Ask your math question in a clear, concise manner.
β€’ Show your work, and if possible, explain where you are stuck.
β€’ After 15 minutes, feel free to ping <@&286206848099549185>.
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Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

quaint gull
#

im drawing a blank and i dont want to looking it up because i want to know how to solve it

civic sedge
#

well first of all, what have you tried

quaint gull
#

dude idek ive stared at this and i genuinely cant think of anything

civic sedge
late cypress
#

cot(x) = 1/tan(x) so you should use that and you would get (tan(x)) = 1/sqrt(3)

#

then u gotta lowk remember the unit circle thing

quaint gull
#

i was gonna try to square -3 for -1.73 and move it to the other side

civic sedge
late cypress
quaint gull
#

so cot0 = - sqrt3

civic sedge
#

now there's two ways you can get rid of the cot

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well technically one

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because the other is just a longer way of doing the first

quaint gull
#

with unit circle its like 30 degrees i thought

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or whats what i got

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idk if i did it wrong

civic sedge
#

you have that (\cot \theta = \sqrt{3})

#

now

rocky lotusBOT
#

Ryan + James (TCC)

civic sedge
#

let's take the arccot of both sides to get rid of the cot

#

(\arccot \cot \theta = \arccot \sqrt{3})

rocky lotusBOT
#

Ryan + James (TCC)

civic sedge
#

(\theta = \arccot \sqrt{3})

rocky lotusBOT
#

Ryan + James (TCC)

quaint gull
#

following

civic sedge
#

now the arccot here is asking you "what value's cotangent is \sqrt 3"

#

now the definition of the cotangent is (\cot = \frac{1}{\tan} = \frac{\cos}{\sin}) right?

rocky lotusBOT
#

Ryan + James (TCC)

quaint gull
#

yeah

#

tan0 = sqrt 3/3?

#

idk how to make theta sign

#

0 is supposed to be theta

civic sedge
rocky lotusBOT
#

Ryan + James (TCC)

civic sedge
quaint gull
#

okay

civic sedge
#

so what angle gives you a tan theta of sqrt(3)/3?

quaint gull
#

30?

civic sedge
#

yes

quaint gull
#

or pie/6

#

if i recall

civic sedge
#

You got it right earlier, I just wanted to see your thought process

#

yes

#

(\frac{\pi}{6})

rocky lotusBOT
#

Ryan + James (TCC)

quaint gull
#

okay

civic sedge
#

do you understand how to approach this sort of problem now?

quaint gull
#

yeah thank you

#

youre amazing lmao

civic sedge
#

(last I did was multivariable calculus over a year ago) -Ryan

quaint gull
#

well u def helped

#

ty again

civic sedge
#

it's no problem

#

if you need anything further, feel free to open a new help channel

quaint gull
#

.close

vale dockBOT
#
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Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

brittle epoch
#

how do i solve $\log_x{3} + \log_3{x} = \ln{x}$

rocky lotusBOT
#

General_Jacob

shadow moss
#

use change of base to make everything natural logs

charred fulcrum
#

or log base 3, it doesn't matter, as long as all the x's are in the same log base

brittle epoch
#

okay thanks

#

.close

vale dockBOT
#
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vale dockBOT
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Available help channel!

Send your question here to claim the channel.

Remember:
β€’ Ask your math question in a clear, concise manner.
β€’ Show your work, and if possible, explain where you are stuck.
β€’ After 15 minutes, feel free to ping <@&286206848099549185>.
β€’ Type the command .close to free the channel when you're done.
β€’ Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

thorn kernel
#

wait

vale dockBOT
thorn kernel
#

for this

#

if z = 0 we get -1 = y^2

#

so how do we know what y is like?

chrome beacon
#

for that k there is no z = 0

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as you can see

#

but for a different k (-1 i think) there will be

thorn kernel
#

what

#

if i set z = 0

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-y^2 for 2 cases k = -1 and k=0

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for k = 0 its just -y^2 = 1

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for k= 1 its just -y^2 = 0

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k=1 makes sense its just 0 at the origin

thorn kernel
chrome beacon
#

the graph that looks like ) ( which is labeled k = 0

thorn kernel
#

yea

chrome beacon
#

is different from the graph that looks like X which is labeled k = 1

thorn kernel
#

yeah i get that

#

k = 1 is the X

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k = 0 is the )(

#

but how do we draw the )( from

chrome beacon
#

and is also different from the graph that looks like ⩆ which is unlabeled but should probably be like k = -1 or something

thorn kernel
#

u said to set z = 0 and y = 0

#

what im asking is how to draw )( where do they get this from

#

for the )( in z axis we get that of k = 0 and set y = 0 right we get z = +-1/3

#

but how do we do that for y

chrome beacon
#

did they mislabel that

#

weird, if x = 0 and y = 0 then z does have real solutions, so the ≍ graph should be the x = 0 graph

thorn kernel
#

wot

chrome beacon
#

if x = 0, then your equation is 9z^2 - y^2 = 1, which is a hyperbola that goes through the points (y = 0, z = 1/3) and (y = 0, z = -1/3)

#

right?

thorn kernel
#

yea

chrome beacon
#

so that describes the ≍ graph

thorn kernel
#

its these ones right here

#

yep

chrome beacon
#

yea

#

that should be labeled k = 0

thorn kernel
#

now how do we get )(?

chrome beacon
#

try k = 2

#

see what that gives you

thorn kernel
#

why would k = 2

#

its 1-k^2

chrome beacon
#

wdym why would k = 2

#

yes....

thorn kernel
#

k is betwee -1<k<1

chrome beacon
#

is it?

#

does it say that somewhere

thorn kernel
#

1-k^2, how can u have negative hyerbola

chrome beacon
#

try it.....

#

does the x axis not go beyond 1?

#

i'm fairly sure the x axis goes beyond 1

thorn kernel
#

hm ok

#

ig that rule only applies for spheres and circles

chrome beacon
chrome beacon
#

whereas a hyperbola always has at least some real solutions

vale dockBOT
#

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muted bridge
vale dockBOT
muted bridge
#

Hi

#

the transformation would be 3 units to the left

#

and 1 unit down

#

idk i just guessed D is the correct graph because

#

it looked the most like what it should be

#

but im so confused

frozen ledge
muted bridge
frozen ledge
#

and it’s 3 units left for what function?

muted bridge
#

log

frozen ledge
#

not log_4(x)

#

no

muted bridge
#

no?

frozen ledge
#

nope

#

2(x + 3/2)

#

(x, y) β€”> (x, y + 1) β€”> (x + 3/2, y + 1) β€”> (2x + 3, y + 1)

vale dockBOT
#

@muted bridge Has your question been resolved?

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agile island
#

hi im back, could i get some help with this problem? be_catheart

  1. A piece of work can be completed in 30 days by 10 men. If the work is to be completed 5 days earlier, how many more men are needed? (Assume that the men work at the same rate.)
agile island
#

so far i have '1 man = 30 x 10'

#

but im not sure where to put 25 (5 days earlier)

#

since they have to work at the same rate i cant make it '1 man = 25 x 10'

sharp whale
#

it should be 1 work = 30 days x 10 men instead

#

now we have 1 work = 30 days x 10 men = 25 days x ? men

agile island
#

ohhh ya

sharp whale
#

presumably for less days we need more manpower, so you have to figure that out with algebra

#

since we know 30 days x 10 men = 25 days x ? men,

#

that means 30 x 10 = 25 x ?, right

agile island
#

ya

sharp whale
#

now can you find out what ? is

agile island
#

300 = 25x?

sharp whale
#

sure, then?

agile island
#

x = 12

sharp whale
#

yep

agile island
#

wait im not sure if im allowed to use algebra tho

sharp whale
#

30 days x 10 men = 25 days x 12 men

agile island
#

or like variables

sharp whale
#

then you can think about it this way

#

you can think of 25/30 as a factor for how smaller the time we have is

#

25/30 = 5/6

#

so we only have 5/6ths of the time given, right

agile island
#

ya

sharp whale
#

30 days x 10 men

#

= 30 days x 5/6 x 6/5 x 10 men

#

since 5/6 x 6/5 = 1, right

agile island
#

ahhh

#

i see

sharp whale
#

this is a bit of a strange trick

#

but the more common way to think about it is

#

5/6x the time, so we need 6/5x the manpower

agile island
#

so reciprocal?

sharp whale
#

like with "double the manpower in half the time"

sharp whale
agile island
#

ok i think i got it q_thappy

#

tysm for the help!

sharp whale
#

np

agile island
#

.close

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#
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silk jacinth
#

Help

vale dockBOT
tawny moon
#

do you have a question? if so, do post it

stoic adder
#

What is your question?

vale dockBOT
#
What step are you on?
1. I don't know where to begin.
2. I have begun but got stuck midway.
3. I got an answer but I was told that it's wrong.
4. I got an answer and would like my work checked.
5. I have a question about someone else's work/solution.
6. I have completed the problem and don't need help anymore. Thank you.
7. None of the above
silk jacinth
#

I'm in need of help with fictional currency translation.

How much would Vash's double dollar bounty be worth translated to Woolong?

In the series "Trigun", the main character, "Vash", has a bounty of $$66,000,000,000. ($132,000,000,000 translated to USD)

According to the internet, one double dollar in Trigun is worth around $2 USD.

However, in the series "Cowboy Bebop", due to hyperinflation, 1 Woolong is worth $0.000031 USD.

So, if I'm correct, $$1 = $0.000062 correct?

according to someone on Reddit, I got this conversion backwards, though I didn't understand their explaination.

vale dockBOT
#
What step are you on?
1. I don't know where to begin.
2. I have begun but got stuck midway.
3. I got an answer but I was told that it's wrong.
4. I got an answer and would like my work checked.
5. I have a question about someone else's work/solution.
6. I have completed the problem and don't need help anymore. Thank you.
7. None of the above
tawny moon
#

i think we know where OP's at rn

silk jacinth
#

2 and 3?

stoic adder
#

hmm

tawny moon
#

what are you trying to find?

#

the conversion rate between what and what? i see three currencies here and some contradictions

copper stump
#

You already know $$1 = $2, so where did $$1 = $0.000062 come from

silk jacinth
#

I'm trying to convert one fictional currency to another.

Double Dollars (from Trigun), wherein $$1 = $2 USD.

to Woolong's (from Cowboy Bebop), wherein W1 = $0.000031 USD

so according to my math, $$1 (double dollar from Trigun) should be worth 0.000062 Woolong.

According to Reddit, that conversion is backwards, and I don't know where I'm going wrong.

To put simply, I'm trying to translate Vash's $$66,000,000,000 double dollar bounty to Woolong. And since $$1 = $2, his bounty in USD should be $132,000,000,000 in the real world.

So, I'm trying to figure it out for Cowboy Bebop

copper stump
#

So you have, 1W = $0.000031. That would mean for $1 you need approx 32258W (if reddit is correct)

#

and so, for $2, you need 64516W

#

and $2 = $$1

silk jacinth
#

Correct

copper stump
#

well?

#

do you see how yours is the other way round?

#

64516W = $$1

silk jacinth
#

Oh

#

Yea, I see

#

The calculation I got was that Vash's bounty would only be W4,092,000, and I knew that had to be incorrect.

#

Though I'm still struggling to figure out what it'd actually be.

tawny moon
#

you have the bounty in USD

#

just go from there

copper stump
#

,calc 132000000000 / 0.000031

rocky lotusBOT
#

Result:

4.258064516129e+15
copper stump
#

this much

silk jacinth
#

4,258,064,516,129 Woolong?

#

Someone on Reddit managed to get 4,258,064,516,129,032 Woolong

(unless that additional 032, was supposed to be 32 cents

copper stump
#

4,258,064,516,129,000 Woolong

silk jacinth
#

Oh

copper stump
#

yea, the calculator is not very precise

#

that may be 032

#

in the end

silk jacinth
#

I see, so my answer is over 4 quadrillion

copper stump
#

yep

silk jacinth
#

Thank you, that answers my question.

#

How do I close this out?

tawny moon
#

.close

silk jacinth
#

.close

vale dockBOT
#
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raven token
vale dockBOT
raven token
#

i know my answer is wrong but i dont get why

#

what i did was

#

i know the volume is area of triangle times height

#

so i know the height of the triangle is 6 and height of prism is 15

#

so if i assume b is the base of the equilateral triangle

#

isnt the volume (6b/2)*15

#

which is 45b

#

and if i swap the heights

#

i also get 45b

#

so i got the answer as 1

#

but i def did smth wrong

copper stump
#

sure, but b is gonna be different when you swap the H and h

raven token
copper stump
#

the height of an equilateral triangle is related to its base

copper stump
raven token
#

i dont get it wouldnt he already know b?

copper stump
#

you need to calculate it from the correct height

#

*base

#

you only know h and H

#

you dont know b

raven token
#

ohh

#

so i cant assume that he knows b

autumn whale
#

write out the equation to calculate b and I think that'll help you understand

copper stump
#

Why are you talking in 3rd person, aret you the david in the problem

autumn whale
raven token
#

ohh so i split it into like

#

two triangles

#

and then like

autumn whale
#

yea

#

they are 30 60 90 triangles

#

so that makes the calculation part easier

raven token
#

so( b/2)/6=tan30

autumn whale
#

or you can just use the 30 60 90 triangle rule

raven token
#

which would make the equation b/2sqrt3=tan 30

#

wait im lost

autumn whale
#

dont mind my bad drawing skills

raven token
#

so if h is 6

autumn whale
#

the sides in a 30 60 90 triangle are x, 2x, and x root 3

raven token
#

yeah i get that so far

autumn whale
#

so if $h = x\sqrt{3}$

rocky lotusBOT
#

satvik

raven token
#

ohh then sub in either 6 or 15 first for h

autumn whale
#

$x = \frac{h}{\sqrt{3}}$

rocky lotusBOT
#

satvik

autumn whale
#

you should be able to do the rest

raven token
#

so if i say 6 then x= 6/root 3

autumn whale
#

yea

raven token
#

and the base is 2x

#

oh i see yeah i could do the rest

#

thank you

autumn whale
#

indeed

raven token
#

.close

vale dockBOT
#
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hardy temple
vale dockBOT
hardy temple
#

been doing this for a long time

magic lynx
#

uhh

#

is the problem to calculate it exactly

hardy temple
#

i rewrote it the fraction as
$\frac{(-1)^n x^{2n}}{(2n+1)}$
to solve the sum at x=sqrt1/3

magic lynx
#

or prove convergence

hardy temple
hardy temple
rocky lotusBOT
#

haveaniceday12

hardy temple
#

so it looks a lot like the taylor series for ln(1+x) and ln(1-x)

magic lynx
#

uh is this taylor series

hardy temple
#

not exactly but with i believe we're supposed to turn it into one through some integration and or differentiation

#

it's just the odd terms of the taylor series for ln(1+x) with alternating signs

#

i think i got it one escond

low frigate
magic lynx
#

wait you can get all of the even terms in the taylor series by like using ln(1-x^2) right or something like that

low frigate
#

this is a direct sub into one of the common taylor series formulas

#

does the ln series have a 2n+1 on the bottom?

hardy temple
#

unfortunately no

magic lynx
#

wait so we have all terms even and odd from ln(1-x)

hardy temple
#

it's all of the odd terms from ln(1+x) with alternating signs

#

or ln(1-x) technically

magic lynx
#

wait just use ln(1-x)

#

ok now we need to get rid of the even terms

hardy temple
#

indeed

low frigate
#

I think you’re getting distracted chasing a shiny object

#

this is not the way

hardy temple
#

that's what i thought with that too i tried it and i couldn't get anywhere with it

magic lynx
#

the taylor expansion of ln(1-x^2) will be the same thing for ln(1-x) except each exponent will be doubled

low frigate
#

all of the even terms have the same sign, how are you going to cancel those out with the alternating series for ln?

low frigate
#

that doesn’t work

#

the (-1)^n term is independent of the x term

magic lynx
#

oh i see

#

yes you are right

hardy temple
#

the answer to it is $\frac{\pi}{2\sqrt{3}}$

rocky lotusBOT
#

haveaniceday12

hardy temple
#

acccording to wolframalpha

magic lynx
#

oh wait what is the expansion for ln(1+x^2)

low frigate
hardy temple
#

hm

#

because then i made it
$\displaystyle \frac{1}{x} \sum_{n=0}^{\infty} \frac{(-1)^n x^{2n+1}}{(2n+1)}$

rocky lotusBOT
#

haveaniceday12

low frigate
#

what’s the taylor series expansion for $\frac{1}{1+x^2}$? what happens when you integrate it?

rocky lotusBOT
hardy temple
#

arctan

low frigate
#

yes

hardy temple
#

wow i think i see it now

#

thank you so much

#

.close

vale dockBOT
#
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gray patrol
#

is this role can be used into this question ?

gray patrol
#

or should i use this one ?

jovial edge
#

it's the samehmmcat

stiff lily
#

pretty much the same thing

tacit ore
#

i think you can intergrate separetly

gray patrol
#

but i wanted to use this because it is easy to save in my mind

#

thx alot

#

.close

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#
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fair wing
#

R(x)=xΒ²-2x+2 and Q(x)= 2xΒ²-4x+3, how do i use completing the square here

oak crane
#

,tex .cts

rocky lotusBOT
#

をキラ (>⩊<)

fair wing
tawny moon
#

why not simplify the 2/2

stiff lily
#

why are you adding/subtracting the x term

sharp whale
#

@fair wing you here?

blissful sinew
#

Not a variable term

vale dockBOT
#

@fair wing Has your question been resolved?

#
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fair wing
#

.reopen

#

.reopen

sharp whale
#

.reopen

#

.close

vale dockBOT
#
Channel closed

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sharp whale
#

.reopen

vale dockBOT
#

βœ…

sharp whale
#

@fair wing looks like thats fixed

fair wing
#

ok so

#

i am doing x2-2(1) (x) +2-2+2

#

xΒ²-2(2x/2) + (2x/2)Β² - (2x/2)Β² + 2

#

This is correct ig ^

glass kelp
#

wait

#

whatare we doing here

#

completing the square for ${R(x)}$ and ${Q(x)}$ indpendently, right?

rocky lotusBOT
glass kelp
#

@fair wing

fair wing
#

Yes @glass kelp

#

Both are different

glass kelp
#

alrighty

#

so

fair wing
#

this is very basic thing but i am stuck here

glass kelp
#

ok

#

what do u notice abt the term containing x^2 and x

#

can u think of a perfect square containing x^2 + 2x?

fair wing
#

x-2) Β²

#

(

glass kelp
#

nope

#

(x-2)^2 = x^2 - 4x + 4

fair wing
#

it should be +

glass kelp
#

still

#

the middle is 4x not 2x

fair wing
#

x+1) Β²

glass kelp
#

yup

#

so

#

${(x+1)^2 = x^2 + 2x + 1}$, right?

rocky lotusBOT
fair wing
#

Yes ofc

glass kelp
#

subtracting 1 on both sides

#

${(x+1)^2 - 1 = x^2 + 2x}$.

rocky lotusBOT
fair wing
#

Yes

glass kelp
#

We can substitute this back into our original thing

#

${x^2 + 2x + 2 = (x^2 + 2) + 2 = (x+1)^2 - 1 + 2}$

rocky lotusBOT
fair wing
#

Yeah

glass kelp
#

combine the last two terms

#

all should be done

#

now

#

could u do a similar thing for Q(x)?

fair wing
#

Yes

glass kelp
#

cool

#

after u're finished, could u send me ur working so i can check

fair wing
#

Yes

#

4x/2 -2) Β²

#

Nah

#

It's not

stiff lily
#

first factor out 2 from the first two terms

vale dockBOT
#

@fair wing Has your question been resolved?

vale dockBOT
#
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Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

brazen zephyr
#

why is the decreasing interval (-infinity, -1]u(0, 2) and not (-infinity, -1)u(0, 2) ?

brazen zephyr
#

i dont understand why -1 is included in the decreasing interval, but not included in the increasing one (-1, 0)u(2, infinity)

sharp whale
#

theres no real reason for this, presumably they want -1 to either be in the increasing interval or in the decreasing one, so they just chose one of them

jovial edge
chrome beacon
#

shouldn't really be included in either

sharp whale
#

the correct way is to stick to "dont include them at all"

#

or to stick to "always include them (in specific contexts)"

#

instead of halfway inbetween like here

brazen zephyr
#

so the second answer i mentioned technically wouldnt have been wrong?

sharp whale
#

yea, thats what Id expected to see

#

decreasing would also be (-inf, -1) U (0, 2)

brazen zephyr
#

oh okay thanks πŸ˜„ i was overthinking that one bracket

#

.close

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#
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β€’ Type the command .close to free the channel when you're done.
β€’ Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

lusty crystal
#

I wanna learn how to do algebraic division T -T

lusty crystal
#

like I'm shit at ut

#

*it

#

Ping me anytime

stiff lily
#

wdym by algebraic division?
do you have a specific math problem you're stuck on

warped shale
frank spindle
#

@lusty crystal could you elaborate on your problem

lusty crystal
#

Like

#

Wait

#

Lemme copy the sums

stark wedge
lusty crystal
#

Like these

#

Idk how it works

stark wedge
#

do you know how long division for regular numbers works?

lusty crystal
#

Like, normal long division method is easy but idk how to do this

stark wedge
#

please don't call me "sir".

lusty crystal
#

I did this but idk what I did

lusty crystal
#

Sorry

lusty crystal
stark wedge
#

ok right so

#

maybe we should revisit long division for regular numbers to think about what you're really doing

lusty crystal
#

I'm good with regular division

stark wedge
#

wow wtf is that opencry\

#

uhhh ok so

lusty crystal
#

Try it someday

stark wedge
#

can i have you work out 5238 / 7 and stop when you hit the remainder

lusty crystal
#

Sure

stark wedge
#

just for demonstration purposes, this should be large enough to work while not being absurdly large

lusty crystal
#

I'mma do it real quick

stark wedge
#

to clarify i dont want any decimals

#

when you hit a remainder just stop

lusty crystal
#

Alright

stark wedge
#

i'll be right back

lusty crystal
#

I would've gone to the depths of hell for the answer with decimals

#

@stark wedge 748

stark wedge
#

i want to see your process and work lol

#

i was gonna comment on it and show you how it relates to polynomial division

lusty crystal
#

I think

#

I might've understood how an algebraic long division method workss

#

The only difference is that, it goes + - +-

#

That's it

stark wedge
#

mmmmm

lusty crystal
#

Can you give me an algebraic long division question

stark wedge
#

sure.

divide x^5 + 8x^4 - 3x^3 + 9x^2 - 10x + 25 by x - 2. show all work.

lusty crystal
#

you should've gone a little easier 😭

#

Either ways i'mma do it

stark wedge
lusty crystal
#

I can't do it anymore 😭

#

My head is like a maze rn

#

@stark wedge

#

First divide x by x⁡ then I get x⁴, then I multiply x-2 by x⁴ and write x⁴ at the top

#

Then I repeat it

stark wedge
#

ok lemme check your arithmetic

modest kettle
stark wedge
#

also yeah you miscopied the dividend

lusty crystal
#

Wha

stark wedge
#

also if we ignore that, 94x+25 requires one more step

lusty crystal
#

Like like terms?

stark wedge
lusty crystal
#

3xΒ³

#

Oh

#

damn

#

I just added the like terms (Cuz I wrote them wrong, so they became like terms Cuz xΒ³

#

so yea)

#

But did I do it right tho?

stark wedge
#

you had one step to go

#

94x+25 requires one more step

#

subtract 94x - 188

lusty crystal
#

I know it takes one more step, but my brain isn't braining enough to add 188 with 25

#

yk what, i'mma add it

#

213

stark wedge
#

if i saw anything wrong with your arithmetic i would have said it

#

"stopped one step short" is one of the easiest things to correct

lusty crystal
lusty crystal
#

So basically, I just need a bit (alot...) of practice

stark wedge
#

like this

lusty crystal
#

Yea

#

I know

stark wedge
#

yeah that

lusty crystal
#

But writing it like that vs doin it in brain is uh

#

I choose the latter

stark wedge
#

don't do things in brain except if you are 120% certain you could do them at gunpoint flawlessly

#

after being woken up at 3 in the morning

vale dockBOT
#

@lusty crystal Has your question been resolved?

#
Channel closed

Closed by @lusty crystal

Use .reopen if this was a mistake.

lusty crystal
#

I can

lusty crystal
#

Hesitation kills the bird

vale dockBOT
#
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lime bone
#

I bet there are some unconventional way to identify independent two events

lime bone
#

Let’s say I roll a fair dice, and A is the event where I get 1,3,or 4as the result. B is where I get even numbers

#

Are A and B independent

turbid valve
#

A and B are independent events if P (A and B) = P(A) x P(B)

#

That's sorta the definition of independence

lime bone
#

What is the intuition? Can I tell if they are independent by reasoning

jovial edge
#

Yeah, rolled 1,3,4 didn't affect the out come of when you roll even

#

If the one event affect the outcome of other event then they're not independent event

turbid valve
#

oh come on it's a PNG

#

The probability that A, given B, will happen is definitionally the probability of both happening over the probability of B happening

#

But if they're independent, then P(A|B) = P(A)

#

Rearrange

lime bone
#

Yes, I know that. But I wonder if I can solve their relationship by reasoning

#

Like whether I take a poop now is doesn’t affect whether you eat a sandwich

#

These two events are independent

#

Can I do it the same way? Can I tell if A and B are independent by reasoning

#

Or there another way that do not rely on this formula?

tawny moon
# turbid valve

i believe we have to be careful about the difference between independent events and mutually exclusive events

pine prairie
spice bluff
#

Hi

lime bone
pine prairie
#

Uhh what do you mean

lime bone
#

Like any mathematical definition is took away from you

pine prairie
#

So let me clarify what you want

#

You want a solid unambiguous definition of a mathematical concept without using the technical terminology constructed for the sole purpose of precise mathematical arguments

pine prairie
#

Okay build a rocket with nothing but pebbles

#

Do you see the absurdity of your request

drifting hornet
# lime bone Are A and B independent

well, in this specific case B is obviously less likely to happen if we know that A happened. If A happened, then there is only a 1/3 chance of landing at even number

vale dockBOT
#

@lime bone Has your question been resolved?

#
Channel closed

Closed by @lime bone

Use .reopen if this was a mistake.

#
Available help channel!

Send your question here to claim the channel.

Remember:
β€’ Ask your math question in a clear, concise manner.
β€’ Show your work, and if possible, explain where you are stuck.
β€’ After 15 minutes, feel free to ping <@&286206848099549185>.
β€’ Type the command .close to free the channel when you're done.
β€’ Be polite and have a nice day!

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deft condor
vale dockBOT
stark wedge
#

how did 3x grow a ^2

deft condor
#

ik i could just put y value in second buh

stark wedge
#

also i think you kinda made your own life difficult

#

would you like an easier thing to do or do you want to continue with this specific method

deft condor
#

yea

stark wedge
#

... so which one is it

#

@deft condor

deft condor
#

what did i do wronh

stark wedge
#

how did 3x grow a ^2