Find the indicated derivative.Find y " if y = -7 cos x.
A. y " = -7 sin x
B. y " = 7 sin x
C. y " = 7 cos x
D. y " = -7 cos x
Answer: C
Mathematics
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A. 9
B. 
C. -3
D. 3
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Use division to express the fraction in the form quotient + 
.
A. 2x2 + x + 3 + 
B. 2x2 + x + 3 + 
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D. 2x2 + 5x + 9 + 
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Evaluate the radical expressions or indicate that the root is not a real number.
A. 16 B. -2 C. 2 D. not a real number
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