Use logarithmic differentiation to find the derivative of y.y = cos x
A. 
B. cos x
C. cos x
D. cos x
Answer: C
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Use the formula indicated to determine the prime number generated for the given value of n.p = n2 - n + 41; n = 37
A. 4251 B. 1373 C. 1365 D. 2691
Solve the problem.There are currently 60 million cars in a certain country, decreasing by 4.3% annually. How many years will it take for this country to have 31 million cars? (Round to the nearest year.)
A. 2 years B. 16 year(s) C. 7 year(s) D. 78 years
Decide whether the given set of numbers is a commutative group under the given operation.Prime numbers; multiplication
A. Yes B. No
Suppose the distance s (in feet) covered by a car moving along a straight road after t sec is given by the function 
. Calculate the (instantaneous) velocity of the car when t=35.
a. 223 ft/sec b. 16 ft/sec c. 560 ft/sec d. 4130 ft/sec