Solve the equation by the quadratic formula.(x + 5)(x - 1) = 0
A. 2 ± 
B. 2 ± 2
C. -2 ± 2
D. -2 ± 
Answer: D
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Solve the problem.The initial value problem models the payoff of a loan. Solve the initial value problem for t ? 0, and determine the first month in which the balance is zero. B'(t) = 0.007B - 3,500, B(0) = 70,000
A. B = 50,000 - 43,000e0.007t, reaches a balance of zero after approximately 12 months B. B = 350,000,000e0.007 + 35,000,000e0.007t, reaches a balance of zero after approximately 72 months C. B = 50,000 + 43,000e0.007t, reaches a balance of zero after approximately 32 months D. B = 500,000 - 430,000e0.007t, reaches a balance of zero after approximately 22 months
Use cylindrical coordinates to find the volume of the indicated region.the region enclosed by the paraboloids 
and 
A. 162? B. 81? C. 243? D. 324?
Find the slope of the line tangent to the graph of the function at the given value of x.y = x3 - 4x + 5; x = 2
A. 5 B. 8 C. 13 D. - 11
Use l'H
pital's Rule to evaluate the limit.
(tanh x)x
A. 1 B. e2 C. ? D. 0