Solve and check.
- 
= 
A. x = 5
B. x = -5
C. x = 0
D. No solution
Answer: D
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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 satisfying x2 + y2 ? 1; range: real numbers - 
? z ? 
; level curves: circles with centers at (0,0) and radii r, 0 < r ? 1
B. Domain: all points in the xy-plane; range: all real numbers; 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)
Solve the absolute value equation.
- 8 = 4
A. x = - 
, 
B. x = - 
C. x = 
, - 
D. x = - 
Divide.
A. 80x4 B. 9x4 C. 9x95 D. 9x14
Solve.Find the dimensions of a rectangular garden with perimeter 
and area 
A. 20 yd by 11 yd B. 20 yd by 22 yd C. 10 yd by 22 yd D. 10 yd by 11 yd