For the function f, use composition of functions to show that f-1 is as given.
, 
What will be an ideal response?
Answers may vary. One possible solution is:
1. (f-1 ? f)(x) = f-1(f(x)) = f-1
= - 
= x;
2. (f ? f-1)(x) = f(f-1(x)) = f
= - 
= x
Mathematics
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If the number given is a mixed number, convert it to a fraction. If the number is given as a fraction, convert it to a mixed number.
A. 
B. 
C. 
D. 
Mathematics
Solve.The pressure P (in pounds per square inch or psi) on a submerged body in wastewater is given by 
where D is the depth in feet. At what depth is the pressure 45.0 psi? (Round to the nearest tenth, if necessary.)
A. 58.3 ft B. 114.8 ft C. 62.9 ft D. 86.5 ft
Mathematics
Use =, <, or > to write a true statement.
A. = B. < C. >
Mathematics
Evaluate the expression.Let x = -8, y = 5. Evaluate 
.
A. 13 B. -13 C. 3 D. -3
Mathematics