Solve the problem.For what numbers x, 0 ? x ? 2?, does cos x = 1?
A. 0, 2?
B. 
C. 
, 
D. none
Answer: A
Mathematics
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Take west to be the positive direction. The height of a sloped roof above the place you are standing is 13 feet. If you move 5 feet to the west, the height is 7 feet. What is the slope of the roof line? ?
A. -1.20 feet B. 1.20 feet C. -0.63 feet D. 1.61 feet
Mathematics
Find the average velocity of an object which follows the position function s(t) over the given interval.s(t) = 
, [2, 8]
A. - 
B. 2
C. 7
D. 
Mathematics
Solve.George bought a book for $11.58. If he paid with two $10 bills, what was his change?
A. $8.42 B. $9.42 C. $9.00 D. $8.52
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 2x + 5
A. f-1(x) = 
B. f(x) = 
C. f-1(x) = 
D. f-1(x) = - 
Mathematics