If the following number is a composite number, write it as a product of prime factors. Otherwise, identify it as prime.90
A. 2 ? 3 ? 3 ? 5
B. 2 ? 3 ? 5
C. 10 ? 3 ? 3
D. 2 ? 2 ? 3 ? 3 ? 5
Answer: A
Mathematics
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Evaluate the expression using x = 4, y = 5, and z = -2. figure 1.png)
What will be an ideal response?
Mathematics
Simplify the expression using the order of operations.9 ? 8 - 3
A. 69 B. 216 C. 75 D. 45
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Find the expected value, the variance, and the standard deviation, when they exist, for the probability density function. Give an exact answer for the expected value and round the variance and standard deviation to four decimal places when appropriate.f(x) = 
A. 
; does not exist; does not exist
B. 
; 2.2168; does not exist
C. 
; 1.4889; does not exist
D. 
; 2.2168; 1.4889
Mathematics
Use the formula for the sum of the first n terms of a geometric sequence to evaluate the sum.
A. 
B. 
C. 
D. 
Mathematics