Solve the problem.The time of a telephone call (in minutes) to a certain town is a continuous random variable with a probability density function defined by 
for 
Find the probability that the call lasts between 1 and 2 minutes.
A. 0.8125
B. 0.0625
C. 0.9375
D. 1.0625
Answer: C
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Find the center and radius of the circle with the given equation. (x + 2.4)2 + 
2 = 
A. (0.75, -2.4); r = 
B. (-2.4, 0.75); r = 
C. (0.75, 2.4); r = 
D. (2.4, -0.75); r = 
Pick which graph satisfies the given conditions.Cubic polynomial with two distinct real zeros and a positive leading coefficient.
A. 
B. 
C. 
D. 
Factor completely. If the polynomial cannot be factored, say it is prime.30x3 - 25x2y + 12xy2 - 10y3
A. (5x2 + 2y)(6x - 5y) B. (30x2 + 2y2)(x - 5y) C. (5x2 - 2y2)(6x + 5y) D. (5x2 + 2y2)(6x - 5y)
Solve the problem.Let T be the amount of time (in seconds) it takes a baseball to fall to the ground when the ball is dropped from h feet above the ground. A good model is 
Simplify the right-hand side of the equation and determine how long it would take for a baseball to reach the ground if it were dropped from the top of a building that is 930 feet tall. Round to the nearest tenth when necessary.
A. T = 
; 232.5
B. T = 
; 7.6
C. T = 
; 15.2
D. T = 
; 1.9