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anonymous
 5 years ago
A company makes computer chips from square wafers of silicon. It wants to keep the side length of a wafer very close to 18 mm and it wants to know how the area
A(x)
of a wafer changes when the side length x changes. Find
A'(18).
anonymous
 5 years ago
A company makes computer chips from square wafers of silicon. It wants to keep the side length of a wafer very close to 18 mm and it wants to know how the area A(x) of a wafer changes when the side length x changes. Find A'(18).

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Since we are talking about square wafers, the area is the side length squared > A(x) = x^2 Differentiate using power rule: d/dx x^n = n*x^n1 > A'(x) = 2x >A'(18) = 2*18 = 36
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