Posted by ASDFGHJKL; on Thursday, November 10, 2011 at 5:00am.
this topic that i learned in class is "changing the subject of a formula" FYI
Use algebra to derive the formula for a in terms of h, A and b.
You should use parentheses to show if (a+b) is part of the denominator of a fraction h/[2(a+b)], or not. I will assume you mean
A = (h/2)*(a+b)
a + b = 2A/h
a = 2A/h -b
God bless you. Thanks!
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