The graph of a function f is given. On the same axes, sketch the graph of f-1. 
A. 
B. 
Answer: B
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = sin-1(x2 + y2)
A. Domain: all points in the xy-plane; range: all real numbers; level curves: circles with centers at (0, 0)
B. Domain: all points in the xy-plane satisfying x2 + y2 ? 1; range: real numbers - 
? z ? 
; level curves: circles with centers at (0, 0)
C. Domain: all points in the xy-plane; range: real numbers - 
? z ? 
; level curves: circles with centers at (0, 0)
D. Domain: all points in the xy-plane satisfying x2 + y2 ? 1; range: real numbers - 
? z ? 
; level curves: circles with centers at (0,0) and radii r, 0 < r ? 1
Solve the problem.The total price (including sales tax) of a VCR is $353.08. The sales tax rate is 7%. What is the purchase price of the VCR (the price before taxes are added)? Round your answer to the nearest cent.
A. $329.98 B. $333.09 C. $207.69 D. $326.93
Write < or > between the pair of numbers to make the statement true.3 6
A. < B. >
Solve the compound inequality.20x - 2 ? 9x + 31 and x - 4 ? -1
A. 3 ? x ? 4 B. No solution C. x = 3 D. All real numbers