For the given functions f(x) and g(x), find a value x for which (f?g)(x) = (g?f)(x).f(x) = x2 + 9x + 7, g(x) = x + 2
A. x = 2
B. x = 5
C. x = - 
D. x = - 5
Answer: D
Mathematics
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Find the derivative.p = 
A. 
= 
B. 
= - 
C. 
= - 
D. 
= 
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Use Simpson's Rule with n = 4 steps to estimate the integral.
A. 
B. 
C. 
D. 22
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Find the quotient 
of the complex numbers. Leave answer in polar form.z1 = 5(cos 200° + i sin 200°)z2 = 4(cos 50° + i sin 50°)
A. 
(cos 250° + i sin 250°)
B. 
(cos 150° - i sin 150°)
C. 
(sin 150° + i cos 150°)
D. 
(cos 150° + i sin 150°)
Mathematics
Solve the problem.Anne bought a computer for $400. She agreed to pay $100 per month for 4 months, plus 1% interest, on the unpaid balance. Find the total cost of the computer.
A. $410 B. $408 C. $390 D. $406
Mathematics