. If , , , then

border="0">_____.

A. 1.0
B. 0.95
C. 0.80
D. 0.75

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Answer: C

Mathematics

Find the standard deviation. Round to one more place than the data.5, 4, 6, 20, 5, 13, 12, 17, 14

A. 6.3 B. 1.3 C. 5.5 D. 5.9

Solve the problem.Over the past two weeks, Jane earned $260 and $282 respectively, at her part time job. What must she earn in the third week to bring her three-week average earnings to $250 per week?

A. $250 B. $271.00 C. $396.00 D. $208.00

Find the exact value. Do not use a calculator.cos ?

A. 0 B. 1 C. -1 D. undefined

Evaluate the expression.

A.  
B.
C.  
D.