#Please help me find where I have gone wrong in finding h.

72 messages · Page 1 of 1 (latest)

valid swan
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leme take a look

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when the picture actually loads for me

primal harness
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Not loading for me either

twin fiber
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It’s not for me

valid swan
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whats this

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the thing next to 335

twin fiber
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Same

jovial wing
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.1 sorry 335.1

twin fiber
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It loaded!!!!!

valid swan
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4^2 is 16

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and u turned 2h into h

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nvm

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im stuipid

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leme take my time

primal harness
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Do you have the question that goes with it

jovial wing
valid swan
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it seems to be right

jovial wing
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But here it says h should = 5

valid swan
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leme do the question as a whole then first

jovial wing
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Ok

valid swan
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huh wtf

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im literally getting whatur getting

jovial wing
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Step 2 is incorrect

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I dont know what to do instead

valid swan
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step 2 of what

jovial wing
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I'll show now

valid swan
jovial wing
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1 sec

valid swan
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am i getting something wrong

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why are they diving 2l and l by 3?

jovial wing
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Which is wrong

jovial wing
valid swan
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yea

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but why do they divide it by 3 is what i dont understand

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the steps look right

jovial wing
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I'd assume maybe because they take 'l' as being the full height of the pyramid and cone together

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Or overall length

real rune
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here's part a, you said you were getting it wrong cos of part a so maybe this work through will help? and you can tackle b then?

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@jovial wing

valid swan
jovial wing
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Sorry I was meant to say I have done part a correctly but I got part b wrong

real rune
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ahh i see

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i'll work through it now

jovial wing
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Which is the mistake I think I did in the question

valid swan
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cuz the inside the bracket, u added it

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not multiplied it

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so it was 2(3+5)

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2*3 + 2*5

real rune
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ah here

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this is where they get 2l/3 and l/3

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does that help?

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then its just a case of plugging into the formula

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and simplifying

jovial wing
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Thank you, I see what they've done, but with my previous pictures, would that be the mistake I have made?

real rune
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im not sure, it was probably to do with the simplifying steps yes

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where is your working

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ah ok

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so you messed up order of operations on line 3

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you need to multiply first and then combine the like terms

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easier to see if you put brackets round each volume

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that's my rule of thumb

jovial wing
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Ok thank you

real rune
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brackets wherever you can

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np

jovial wing
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Is this right?

real rune
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correct

jovial wing
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Ok thank you so much!