Find the LCD. Do not combine fractions.
, 
A. 5x2 - 2
B. 5x - 2
C. 5x(x - 2)
D. 5x2 - 10
Answer: C
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (2-2)0
A. 1
B. 
C. 0
D. -4
Find the indicated quantities for the appropriate geometric sequence.A piece of cardboard is 0.02 in. thick. The cardboard is cut in half, with one half being placed on top of the other so that its thickness doubles for 6 times in a row. How thick would the final stack of cardboard be? Round to two decimal places.
A. 1.28 in. B. 3.78 in. C. 0.64 in. D. 2.10 in.
Write the fraction that is represented by the given shading.
A. 
B. 
C. 
D. 
For the given probability density function, over the given interval, find the mean, the variance, and the standard deviation.f(x) = 
, [12, 20]
A. ? = 1.6; ?2 = 5.24; ? = 2.29 B. ? = 15.5; ?2 = 5.20; ? = 2.28 C. ? = 16; ?2 = 5.33; ? = 2.31 D. ? = 15; ?2 = 5.34; ? = 2.31