Solve the problem using the quadratic formula.For a car traveling at x mph, stopping distance is estimated by the formula d = 
x2 + 
x. Find a (maximum) safe speed for a stopping distance of 660 ft. Round your answer to the nearest mph.
A. 71 mph
B. 66 mph
C. 74 mph
D. 62 mph
Answer: D
Mathematics
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Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = x2, y = 0, x = 0, x = 5
A. 
?
B. 625?
C. 
?
D. 
?
Mathematics
Express the given function as a composite of functions f and g such that y = f(g(x)).y = 
A. f(x) = 
, g(x) = x2 - 4
B. f(x) = 
, g(x) = - 
C. f(x) = 
, g(x) = x - 4
D. f(x) = 
, g(x) = x2 - 4
Mathematics
Multiply.0.2(3)(-0.008)(60)
A. 2.88 B. -2.88 C. -0.288 D. 0.288
Mathematics
Solve the inequality, and graph the solution set.(a + 6)(a - 1)(a - 5) > 0
A. (5, ?)
B. (-?, 1)
C. (-6, 1) ? (5, ?)
D. (-?, -6) ? (1, 5)
Mathematics