Evaluate the expression. All numbers are approximate. State your answer with the proper accuracy and precision.3.02(-60.5)2 - 2500/1.163 + 0.7285
A. 2.17
B. 13,397
C. 9424
D. 13,400
Answer: D
Mathematics
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Solve the problem.The annual rainfall in Maine is a random variable with probability density function defined by 
for x in 
Find the probability that the rainfall is less than the expected value of the rainfall.
A. 0.500 B. 0.447 C. 0.445 D. 0.489
Mathematics
Perform the indicated operation for the given f(x) and g(x).f(x) = 
, g(x) = 7x + 2
Find (g ? f)(x).
A. x + 4
B. x - 
C. x
D. 7x + 12
Mathematics
Factor by grouping.x3 + 5x2 + 3x + 15
A. (x + 5x)(x2 + 3) B. (x + 5)(x2 - 3) C. (x + 5)(x2 + 3) D. (x - 5)(x3 + 3)
Mathematics
Solve the quadratic equation by completing the square.x2 + 5x - 2 = 0
A. -5 ± 
B. 
C. 
D. 
Mathematics