Evaluate the expression.(g ? f)(-4) when f(x) = -3x + 3 and g(x) = -8x2 + 7x - 7.
A. 492
B. -22
C. 12
D. -1702
Answer: D
Mathematics
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Find the quadratic approximation of f at x = 0.f(x) = ln(cos 8x)
A. Q(x) = 32x2 B. Q(x) = 1 + 32x2 C. Q(x) = - 32x2 D. Q(x) = 1 - 32x2
Mathematics
Express the number in decimal notation.8.1 × 105
A. 81,000 B. 8,100,000 C. 405 D. 810,000
Mathematics
Solve the problem.Evaluate 
at (x, y, z) = (2, 5, 5) for the function u(p, q, r) = p2 - q2 - r; p = xy, q = y2, r = xz.
A. 95 B. 25 C. 15 D. 105
Mathematics
For the complex fraction, determine the LCD of all the fractions appearing within the expression.
A. 6x2 + 42 B. 6x2 + 7 C. 6(x + 7) D. 6x + 7
Mathematics