The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = 
B. f-1(x) = -2x
C. f-1(x) = 
D. f-1(x) = 2x
Answer: C
Mathematics
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Evaluate the factorial expression.
A. 
B. 
C. 
D. 
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Find the area of the region specified in polar coordinates.One petal of the rose curve r = 10 cos 3?
A. 25?
B. 50?
C. 
?
D. 
?
Mathematics
Solve the problem.A rug is to fit in a room so that a border of even width is left on all four sides. If the room is 14 feet by 20 feet and the area of the rug is 160 square feet, how wide will the border be?
A. 2 ft B. 4.5 ft C. 3 ft D. 4 ft
Mathematics
Evaluate the determinant.
a. –72
b. –71
c. –70
d. –74
Mathematics