Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = sin u, u = cos x
A. cos x sin x
B. sin(cos x) sin x
C. - cos x sin x
D. - cos(cos x) sin x
Answer: D
Mathematics
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Evaluate the expression for the given value of x. x4 x = 3
A. 12
B. 
C. 
D. 81
E. -81
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Solve the equation.n + 0.5n = 90
A. n = 90 B. n = 0.5 C. n = –29.5 D. n = 60 E. n = 149.5
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Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.14y2 + 63y - 35
A. prime B. 7(2y + 1)(y - 5) C. 7(2y - 1)(y + 5) D. (14y - 7)(y + 5)
Mathematics
Find the square.(n + 12)2
A. n + 144 B. 144n2 + 24n + 144 C. n2 + 144 D. n2 + 24n + 144
Mathematics