#help-36

1 messages · Page 295 of 1

dense tundra
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My head says that the responses to this question are c) for Question 1 and

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a) for Question 2

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However, the design of this question is incredibly poor.

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What are your thoughts?

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For e.g. the range is independent of the value for x.

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It should be equal to approximately 80 in both graphs.

final saddleBOT
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@dense tundra Has your question been resolved?

shell mountain
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How do you get c for question 1?

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There's quite a range of y values in that first graph

dense tundra
shell mountain
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How so?

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It's asking for the range of y values

dense tundra
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Yes and that is defined as the highest - lowest value. Correct.

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Now where things becoming confusing is the following phrase "At a x value of 40"

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which I believe is redundant or irrelevant to the calculation of the range.

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With this inn mind the range should be approximately 80 in both cases.

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For e.g. highest value for y in second graph is approx 95

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lowest value for y in second graph is approx 25

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95 - 25 = 70

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So the closest answer would be 80.

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What are your thoughts about this interpretation?

shell mountain
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But it might be talking about the points on---or close to---x = 40

dense tundra
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which makes more sense given the context of the question.

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Which is why I conclude that this question is ultaimtely quite silly.

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because it's not exact or definitive

shell mountain
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Because then, the range is smaller for higher r

dense tundra
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Correct.

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I had provided guidance to a student with this question.

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and I provided the former interpretation.

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instead of this one.

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Thanks for the clarity but at the end of the day, I believe this question is designed badly.

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~close

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.close

final saddleBOT
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final saddleBOT
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sturdy brook
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i actually need help

final saddleBOT
sturdy brook
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My question is

pale oracle
sturdy brook
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8^z = 1/2

pale oracle
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k..

sturdy brook
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find the value of z

pale oracle
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so the name of the section you are working on in class is...(?)

sturdy brook
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indicies

pale oracle
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you sure about that?

sturdy brook
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yep

pale oracle
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the section you are on is called "Logarithms"

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oh.

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this is a complex number though

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so is this trigonometry?

weak path
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dont need logs to solve this

sturdy brook
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No its not

pale oracle
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or intermediate algebra

stray wing
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convert 1/2 to a power of 2

sturdy brook
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just some indicies

stray wing
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convert 8^z to a power of 2

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then solve for z

pale oracle
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both sides can be

sturdy brook
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wdym a power of two

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or am i being dumb

pale oracle
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1/2 = 2^-1

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8^z = (2^3)^z

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= 2^3z

sturdy brook
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what howd we get here

stray wing
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how can you express the number 8 in terms of multiplying 2 by itself

sturdy brook
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oh

pale oracle
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b.c. 8 = 2*2*2

sturdy brook
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4?

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oh no oh wait

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2^3

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?

pale oracle
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3 factors of 2

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yes

sturdy brook
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Alright okay

pale oracle
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so you are still on Exponents in class then

stray wing
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ok so do you agree that

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$8^z = 2^{3z}$

soft zealotBOT
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IntelligentCake

sturdy brook
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yes correct

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what now

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how do I make 1/2 a power of two

pale oracle
stray wing
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do you understand what fractional powers mean @sturdy brook

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if you do not understand I suggest you learn this. We are not here to give answers

sturdy brook
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dont they mean n^-m = 1/n^m

stray wing
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no

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oh wait yeah

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ok so what is n and m in this case

sturdy brook
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Lets start from the front Im so lost here man

pale oracle
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right now?

sturdy brook
pale oracle
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you need to memorize them

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that will come easily the more of these you finish

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@sturdy brook

sturdy brook
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Yes

pale oracle
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ok, you should see a few on there you can use

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Power Rule: $(a^m)^n = a^{mn}$

soft zealotBOT
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Disorganized

sturdy brook
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okay

pale oracle
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Reciprocal Rule: $a^{-m} = \frac{1}{a^m}$

soft zealotBOT
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Disorganized

sturdy brook
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perhaps a^1/n - n/a

pale oracle
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definition of a root

sturdy brook
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/ being the square root

pale oracle
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let me just type it

sturdy brook
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Yeah good idea

pale oracle
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nth root definition: $a^{1/n} = \sqrt[n]{a}$

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blech

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knew I would mess that up

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one sec

strange shore
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$a^{1/n} = \sqrt[n]{a}$

soft zealotBOT
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Herels

strange shore
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eh

pale oracle
sturdy brook
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Yep

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So now

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Will this index law help us solve our question

soft zealotBOT
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Disorganized

sturdy brook
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8^z = 1/2

stray wing
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ok so you had the left hand side earlier

sturdy brook
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First step is to put 8 into terms of n^2

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Why?

stray wing
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in terms of 2^n

strange shore
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$(2^3)^z = 2^{-1}$

stray wing
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because both sides of the equation can be expressed as a powers of 2

soft zealotBOT
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Herels

sturdy brook
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Yeap

stray wing
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@strange shore why

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we are trying to teach

sturdy brook
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idc

pale oracle
stray wing
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not give answers

sturdy brook
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I want to know why

pale oracle
strange shore
stray wing
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but @sturdy brook is confused as to why powers of 2

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it doesn't help just stating the form we want it in

pale oracle
strange shore
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doesnt he know about this ? :
$a^{-1} = 1/a$

soft zealotBOT
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Herels

sturdy brook
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I know that

strange shore
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then the rest is piece of cake

stray wing
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@sturdy brook what is 1/2 expressed as 2^n then

pale oracle
sturdy brook
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Im finished imo

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i realised why

pale oracle
sturdy brook
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Its 2^-1 because if I wanted to solve that I would get

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1/2^1

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which is a half

pale oracle
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that is true

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I don't know about the solve part thouhg

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it's just another way to write it

sturdy brook
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so now its in terms of 2^n

pale oracle
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we are solving for z

stray wing
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yes

sturdy brook
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we can find z?

stray wing
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yes

sturdy brook
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so (2^3)^z = 2 ^-1

pale oracle
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getting there..

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nice

sturdy brook
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would I make z the subject and solve?

stray wing
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so now what do you notice about the exponents

pale oracle
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no

stray wing
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and base

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if base is same what does that allow you to do

pale oracle
sturdy brook
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Im stuck here

stray wing
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both bases are same

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so therefore to make both sides equivalent, the powers must be the same

sturdy brook
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Oh yeah

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Is the base 2?

stray wing
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yes

sturdy brook
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sorry if my questions seem dumb

stray wing
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its ok

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we are here to help

pale oracle
sturdy brook
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How would I make the exponents of 3 and -1 the same

stray wing
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3z = -1

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do you agree

pale oracle
stray wing
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that is why I ask do you agree

pale oracle
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you didn't even let him know why we could do that

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or look it up

stray wing
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I want to see if homebound can reason why

pale oracle
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Homebound isn't even reading his Laws of Exponent cheat sheet

stray wing
sturdy brook
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could law 7 help?

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Wait

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so if 2^3 = 2^-1, wouldnt 3 = -1?

stray wing
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that's clearly false but yes I see what you are trying to get at

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but your left hand size is not 2^3

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what is it

sturdy brook
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its 8

stray wing
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not just 8

sturdy brook
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8 to the power of z

stray wing
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yes

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and we already discussed how we can rewrite this as a power of 2

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and what was that

sturdy brook
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2^3^z

stray wing
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yes

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$2^{3z}$

soft zealotBOT
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IntelligentCake

stray wing
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yes?

sturdy brook
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yep

stray wing
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so now which law are you going to use

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$2^{3z} = 2^{-1}$

soft zealotBOT
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IntelligentCake

stray wing
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you are so close to finishing

sturdy brook
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im looking through the laws

stray wing
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you said which one earlier

sturdy brook
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How would law 7 apply here though

stray wing
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m = 3z

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n = -1

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a = 2

sturdy brook
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yes

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so then

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m = n?

stray wing
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yes

sturdy brook
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so 3z = -1

stray wing
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yes!

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so what is z

sturdy brook
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-1/3?

stray wing
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correct!

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good job

stray wing
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Lol

sturdy brook
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lets do another one

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im getting it in 5 minutes this time

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Okay so

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Would the first step to put 16 in terms of 4^n?

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Or something like that

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so 4^2 = 4^-1

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right ? @stray wing

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wait

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4^2q = 4^-1

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so 2q = -1

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so q = -1/2

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IT WAS RIGHTTTTTTTT

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@pale oracle I love this game fr

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okay last one even though im basically talking to myself

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4q=1/16

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Okay guys I need help now

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@tranquil pine

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Wait disorganized are you still here

pale oracle
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yeah, you solved it, why are you stuck

sturdy brook
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Okay for this one its quite technical

pale oracle
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are you on a different one

sturdy brook
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its a different question

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Yes and it got real

pale oracle
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you haven't posted it yet

sturdy brook
pale oracle
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ok

sturdy brook
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its kinda crazy cause 1/16 in index form would be 16^-1

pale oracle
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that's true

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but it's not the only way you can write it in index form

sturdy brook
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but how would I put 4 into a form where its equal to 16?

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Whats another way

pale oracle
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focus on the 16

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how can 16 be in terms of 4?

sturdy brook
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4^2?

pale oracle
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a power of 4

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yes

sturdy brook
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so (4^2)^-1

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?

pale oracle
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uh-huh.

sturdy brook
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So

pale oracle
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how about using those laws of exponents to simplify

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just a little bit

sturdy brook
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4q=(4^2)^-1

pale oracle
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the exponent

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clean up the right side ("RHS")

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also left should be 4^q

sturdy brook
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-1 x 2

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yep

pale oracle
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and what is that

sturdy brook
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4^-2

pale oracle
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ok good

sturdy brook
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so 4^q=4^-2

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so q is -2

pale oracle
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nice job

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I was wrong about you

sturdy brook
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everything is hard before its easy

sturdy brook
pale oracle
pale oracle
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like you were waiting for us to remind you what they are and reasons to use to use them

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but you're clearly doing your own thinking and I want to recognize you for that

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and say I was wrong

sturdy brook
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good teachers 💯

pale oracle
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ok, keep it up

sturdy brook
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okay im trying to get 100 percent on this hw

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and this question is kinda easy but

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better safe

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(16/25)^3/2

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Now thinking normally

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Itd be (16/25)^1/3)^3

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So id cube root 16/25

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to

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wait what the fuck

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This looks so goofy

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wait i messed up

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its

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hahaha

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(9/5)^2

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How would I do that

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would i just square 9 and 5

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so would it be 81/25

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no wait lmfao

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4/5

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itd be 16/25

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wrong but cba

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thanks guys

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.close

final saddleBOT
#
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final saddleBOT
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Ask your math question in a clear, concise manner.
Show your work, and if possible, explain where you are stuck.
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zealous lagoon
final saddleBOT
zealous lagoon
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i already know the first pair is Aunt 1 with Grandma 1, pair 2 will be Mom and Aunt 2, and pair 3 is you and Grandma 2

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but i dont know how to explain using rational expressions

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and i dont know how to write out the equation

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to find the average time between pairs

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.close

final saddleBOT
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Ask your math question in a clear, concise manner.
Show your work, and if possible, explain where you are stuck.
After 15 minutes, feel free to ping <@&286206848099549185>.
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• 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.

final saddleBOT
untold crypt
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What’s your question

ebon dew
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@tranquil pine maybe since ABC are fixed, triangle ABC is fixed, so it will have the same area no matter what

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figure out that area, and then find the area of triangle DAC in terms of x

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then you can deduce the maximum area for the whole shape

final saddleBOT
#

@tranquil pine Has your question been resolved?

final saddleBOT
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