Solve the equation.9(z + 2) = 36
A. z = 1
B. z = 13
C. z = 6
D. z = 2
E. z = 9
Answer: D
Mathematics
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Find the average value of the function f over the given region.f(x, y) = 
; R = {(x, y): 1 ? x ? 4, 1 ? y ? 4}
A. 
2
B. 
2
C. 
D. 
Mathematics
Write the standard form of the equation of the circle described.Center (0, 0), r = 
A. x2 + y2 = 121
B. x2 + y2 = 
C. x2 + y2 = 
D. x2 + y2 = 11
Mathematics
Simplify the radical expression. Assume that all variables represent nonnegative real numbers.(
- 
)(
- 
)
A. x
- x
- 2
+ 5
B. 
- 
- 2
+ 5
C. 
- 
- 10
+ 5
D. 
- 
- 4
+ 25
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Mathematics