Let x be a number. Translate the expression into an English phrase.2x
A. 2 minus a number
B. 2 times a number
C. 2 divided by a number
D. 2 plus a number
Answer: B
Mathematics
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Use a calculator to evaluate the expression, or state that the value does not exist. Round the answer to four decimal places when necessary.csch x 
A. -0.8502 B. -1.8824 C. 0.037 D. -1.1962
Mathematics
Answer the question.Tell which of the following distributions would have the most variation.
A. Salaries of high-school teachers B. Salaries of CEOs of U.S. corporations C. Salaries of waitresses D. Salaries of bank clerks
Mathematics
Round to the nearest hundredth.0.3422
A. 0.34 B. 0.3422 C. 0.342 D. 0.35
Mathematics
Factor by grouping.18a3 + 12a2b - 15ab2 - 10b3
A. (18a2 - 5b2)(a + 2b) B. (6a2 - 5b2)(3a + 2b) C. (6a2 + 5b2)(3a - 2b) D. (6a2 - 5b)(3a + 2b)
Mathematics