Determine whether the given function is one-to-one. If it is one-to-one, find its inverse.f(x) = 
- 3
A. f-1(x) = x3 + 3
B. f-1(x) = (x + 3)3
C. f-1(x) = 
+ 3
D. f-1(x) = (x - 3)3
Answer: B
Mathematics
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Set up an integral for the length of the curve.y = 4 cos x, 0 ? x ? ?
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation and express in lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics
Graph the ellipse. Label the intercepts.45x2 + y2 = 225
A. (-5, 0), (5, 0), (0, -
), (0, 
)
B. (-
, 0), (
, 0), (0, -
), (0, 
)
C. (-
, 0), (
, 0), (0, -15), (0, 15)
D. (-5, 0), (5, 0), (0, -15), (0, 15)
Mathematics
Use the table to solve the problem.The cost, in dollars, of a cab ride for x miles is given by the function f in the following table.
What is the cost of a 4-mile cab ride?
A. $5.81 B. $4.03 C. $6.70 D. $4.92
Mathematics