Simplify. Assume that the variable represents a nonnegative number.
A. 3x
B. 3 
C. 9x
D. -3x
Answer: A
Mathematics
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Find an equation for the circle.Center at (7, -5), radius 
A. (x - 5)2 + (y + 7)2 = 361 B. (x - 7)2 + (y + 5)2 = 19 C. (x + 5)2 + (y - 7)2 = 361 D. (x + 7)2 + (y - 5)2 = 19
Mathematics
Find values for the variables so that the matrices are equal.
= 
A. x = 1; y = 1 B. x = 1; y = 9 C. x = 9; y = 1 D. x = 9; y = 9
Mathematics
Find the two square roots of the number.25
A. ±12.5 B. ±5 C. ±50 D. ±625
Mathematics
Given functions f and g, perform the indicated operations.f(x) = 
,g(x) = 
Find fg.
A. (
)(
)
B. (2x + 4)(2x - 5)
C. (2x - 5)(
)
D. (2x + 4)(4x - 25)
Mathematics