Find the distance between the points (4, -5) and (9, 0).  Round the answer to the nearest tenth.
?

A. 7.1
B. 7.4
C. 7.3
D. 7.5
E. 6.9

Answer: A

Mathematics

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Perform the indicated operations. Write the result in the form a + bj. - 

A.
B.
C.
D.

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Solve the problem.In a survey of 1000 Americans, 850 said that they own a cell phone. Assume that the survey was properly conducted and that the 1000 people surveyed represent an unbiased sample of the entire population. Compute a 95% confidence interval (expressed using percents) for this survey.

A. 84.8% to 85.2% B. 82.8% to 87.2% C. 84.08% to 85.02% D. 81.7% to 88.3% E. 83.9% to 86.1%

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Solve the problem.Determine whether the ordered triple  is a solution of the system of equations.9x + 6y + 9z = 56x + 3y - 3z = 14 x - y + 2z = -3

A. Yes B. No

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Supply the missing numbers. fraction decimal percent  If necessary, round the decimal to the nearest thousandth and the percent to the nearest tenth.

A. 0.35 350% B. 0.35 35% C. 0.23 23% D. 0.23 2.3%

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