Estimate the sum or difference by rounding each number to the nearest ten.
A. 10
B. 20
C. 160
D. 14
Answer: B
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Find the extreme values of the function subject to the given constraint.
A. Maximum: 75 at 
minimum: -75 at 
B. Maximum: 75 at 
minimum: 0 at 
C. Maximum: none; minimum: 0 at 
D. Maximum: none; minimum: 75 at 
Solve the problem.The value, in dollars, of a particular KX37B computer is given by 
where x is the number of years the computer has been in existence. Find the slope and y-intercept of the equation and explain what each signifies.
A. -558.25 signifies the hourly cost of repairs, and 4413 signifies the cost of software. B. -558.25 signifies the amount of depreciation per year, and 4413 signifies the initial cost. C. -558.25 signifies the number of computers owned, and 4413 signifies the cost of electricity. D. 4413 signifies the amount of depreciation per year, and -558.25 signifies the initial cost.
Find the derivative.s = t3 cos t - 14t sin t - 14 cos t
A. 
= t3 sin t - 3t2 cos t + 14t cos t
B. 
= - t3 sin t + 3t2 cos t - 14t cos t - 28 sin t
C. 
= - 3t2 sin t - 14 cos t + 14 sin t
D. 
= - t3 sin t + 3t2 cos t - 14t cos t
Determine whether or not the function is one-to-one.f(x) = 8x3 - 1
A. Yes B. No