Find the indicated derivative.Find y " if y = -9 cos x.
A. y " = 9 sin x
B. y " = -9 sin x
C. y " = -9 cos x
D. y " = 9 cos x
Answer: D
Mathematics
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Solve the problem.Sketch the derivative of the graph.
A. 
B. 
C. 
D. 
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Find the product.-13 ? 
A. 
B. -39
C. - 
D. -8
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Solve and check.6z2 - 12z = 0
A. -2, 0 B. 2 C. 0, 2 D. 0, 3
Mathematics
Find the function value indicated for the function. If necessary, round to two decimal places. If the function value is not a real number and does not exist, state so.Evaluate t(x) = -
for t(3)
A. not a real number B. 3 C. -3 D. -1.73
Mathematics