Solve.Police use the formula s = 
to estimate the speed s of a car in miles per hour, where d is the distance in feet that the car skidded and f is the coefficient of friction. If the coefficient of friction on a certain gravel road is 0.21 and a car skidded 310 feet, find the speed of the car, to the nearest mile per hour.
A. 44 mph
B. 1953 mph
C. 242 mph
D. 96 mph
Answer: A
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Find an equation for the line that passes through the given point and satisfies the given conditions.P = (-8, 9); perpendicular to v = -4i - 6j
A. -6x + 4y = 84
B. y - 9 = - 
(x + 4)
C. -4x - 6y = 52
D. -4x - 6y = -22
Determine if the geometric series converges or diverges. If it converges, find its sum.1 + 
+ 
2+ 
3 + 
4 + . . .
A. converges, 
B. diverges
C. converges, 2
D. converges, 
Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. Not one-to-one
D. f-1(x) = 
Factor out the GCF from the polynomial.60x9y8 + 24x7y6 - 54x5y4
A. 6x5y4(10x4y4 + 4x2y2 - 9) B. 6(10x9y8 + 4x7y6 - 9x5y4) C. 6x5(10x4y8 + 4x2y6 - 9y4) D. -6x5y4(-10x4y4 + 4x2y2 + 9)