For the pair of functions, find the indicated domain.f(x) = 
; g(x) = 
Find the domain of fg.
A. (1, 6)
B. (-?, 1) ? (6, ?)
C. [1, 6]
D. (-?, 6) ? (6, ?)
Answer: C
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Perform the indicated operation.(14x + 12) - (-4x2 - 7x + 12)
A. 4x2 - 21x B. 4x2 + 21x C. 4x2 + 21x - 24 D. -4x2 + 7x + 24
Simplify the expression. If any variables exist, assume that they are positive.4
+ 4
A. 36
B. 9
C. 36x
D. 4
Evaluate the algebraic expression under the given conditions.-5x + 2 for x = 7
A. -37 B. -33 C. -3 D. -70
Let x represent one number and let y represent the other number. Use the given conditions to write a system of nonlinear equations. Solve the system and find the numbers.The difference between the squares of two numbers is 48. Twice the square of the second number subtracted from the square of the first number is 
. Find the numbers.
A. 8 and 4; -8 and 4; 8 and -4 B. 8 and 4; -8 and 4; 8 and -4; -8 and -4 C. 8 and 4; -8 and -4 D. 8 and 4