Simplify the expression. Use the order of operations.
A. 13
B. 15
C. -12
D. 12
Answer: B
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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 = - 5x + 10, y = 5x, x = 0
A. 150? B. 10? C. 25? D. 50?
Find the probability.In a certain college, 33% of the physics majors are ethnic minorities. A random sample of 10 physics majors is chosen. Find the probability that 7 or more are ethnic minorities. Round to the nearest ten-thousandth.
A. 0.0028 B. 0.0185 C. 0.0154 D. 0.0032
Graph the equation by determining the missing values needed to plot the ordered pairs.5y = -2x + 10 ; (0, ), ( , 0), (1, )
A. 
B. 
C. 
D. 
Suppose that research has shown that the probability that a missile penetrates enemy defenses and reaches its target is 0.1. Find the smallest number of identical missiles that are necessary in order to be 90% certain of hitting the target at least once. ?
A. 27 B. 22 C. 20 D. 21 E. 19