Calculate 
.A = 
A. 0
B. 1
C. 76
D. -16
Answer: A
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Solve the problem.How close does the curve y = 
come to the point 
? (Hint: If you minimize the square of the distance, you can avoid square roots.)
A. The distance is minimized when x = 
; the minimum distance is 
units.
B. The distance is minimized when x = 
; the minimum distance is 
units.
C. The distance is minimized when x = - 
; the minimum distance is 
units.
D. The distance is minimized when x = 
; the minimum distance is 
units.
Complete the sentence so the result is an identity. Let x be any real number.
= 
A. cos x B. sec x C. csc x D. cot x
Solve the problem.The function f(x) = 60x computes the number of minutes in x hours. The function g(x) = 24x computes the number of hours in x days. What is (f ? g)(x) and what does it compute?
A. (f ? g)(x) = 84x; It computes the number of minutes plus the number of days in x days. B. (f ? g)(x) = 1440x; It computes the number of days in x minutes. C. (f ? g)(x) = 1440x; It computes the number of minutes in x days. D. (f ? g)(x) = 1440x2; It computes the number of minutes in x days.
Solve the problem.A moving firm charges a flat fee of $40 plus $35 per hour. Let y be the cost in dollars of using the moving firm for x hours. Find the slope-intercept form of the equation.
A. y = 40x - 35 B. y = 35x + 40 C. y = 35x - 40 D. y = 40x + 35