Specify the domain of the function.f(x) = 7x2 + 9x - 7
A. All real numbers
B. x < 0
C. x ? 0
D. x > 0
Answer: A
Mathematics
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Solve the problem.Evaluate 
at (x, y, z) = (5, 2, 2) for the function u(p, q, r) = p2 - q2 - r; p = xy, q = y2, r = xz.
A. 18 B. 38 C. 42 D. 22
Mathematics
Evaluate.8 ? 2 + 18 ÷ (8 - (3 + 2))
A. 24 B. 21 C. 22 D. 23
Mathematics
Factor.4x2 - 32x + 64
A. (x - 4)(4x - 16) B. 4(x - 4)(x - 4) C. 4x2 - 32x + 64 D. 4(x - 16)(x + 1)
Mathematics
Divide and write the answer in simplest form.-192 ÷ (-8)
A. -24
B. 24
C. 
D. 14
Mathematics