LaShai
Solve V = π r2h for h.
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DarkendSinz30
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V = 2(pi)rh
Divide by 2(pi)r on both sides
V/2(pi)r = 2(pi)rh/2(pi)r
V/2(pi)r = h
h = V/2(pi)r
DarkendSinz30
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does that help you out
LaShai
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I'm confused
DarkendSinz30
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your trying to find H correct?
LaShai
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yes
DarkendSinz30
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what it is telling you to do is divide both sides of the equation by 2(pi)r to get the value of H
DarkendSinz30
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Look how the equation is written and it explains how it is done
LaShai
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okay I get what you did now
DarkendSinz30
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that is how for these equations if you are trying to find the value the correct way should be how it is done!
LaShai
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Thank you
DarkendSinz30
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Your welcome
LaShai
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I have another question. Solve P = 2(l + w) for l. What are the missing values in the table?
P w l
14 2 ?
22 8 ?
DarkendSinz30
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okay here goes and follow these is best I can help you
DarkendSinz30
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Basically distribute the 2 with the l and w, so you end up with an equation of P = 2l+2w. Since you have the values for P and W, you can just plug them in, so the only term left would be "l". Does that make it more clear?
DarkendSinz30
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all you have to do is move the constants to one side and make "l" by itself, that would be your solution to "l".
LaShai
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you had me up until you said plug in
DarkendSinz30
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place the number that is already given
LaShai
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okay
DarkendSinz30
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got it
LaShai
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yeah I got p-2w/2=l but how do I plug them in
DarkendSinz30
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type them in
LaShai
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So 8 and 14 is my answer for l