Find the mean of the numbers.Ages of patients (in years) in a clinic:  15,  3 , 23 , 15

A. 15 years
B. 13 years
C. 3 years
D. 14 years


Answer: D

Mathematics

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Solve the problem.An example of an optimal and efficient algorithm for solving the Traveling Salesman Problem

A. is the repetitive nearest-neighbor algorithm B. is the nearest-neighbor algorithm C. is the brute-force algorithm D. is the cheapest-link algorithm E. has not yet been discovered

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Solve.12 - 3(x + 5) = 15 - 6(x + 2)

A. 2 B. 12 C. 18 D. 6

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Find the sum.-15 + (-10)

A. 25 B. -5 C. -25 D. 5

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Determine whether the following is a difference of squares.36x2- 19y2

A. No B. Yes

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