Write an equation in x that models the conditions. Do not solve the equation.12 is what percent (x) of 75?
A. 12 = 75x
B. 0.12 = 75x
C. 12x = 75
D. 12 = 0.75x
Answer: A
Mathematics
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Use the 68-95-99.7 rule to solve the problem.The time it take Claudia to drive to work is normally distributed with a mean of 47 minutes and a standard deviation of 7 minutes. What percentage of the time will it take her less than 68 minutes to drive to work?
A. 99.7% B. 0.3% C. 99.85% D. 0.15%
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Simplify.(x2)8
A. x16 B. 8x16 C. 8x2 D. x10
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If the sequence is geometric, find the common ratio. If the sequence is not geometric, say so.4, 12, 36, 108, 324
A. 12 B. 1/3 C. 3 D. Not geometric
Mathematics