Use the five-step strategy for solving word problems to find the number or numbers described in the following exercise.When 5 times a number is subtracted from 7 times the number, the result is 14. What is the number?

A. 7
B. 0.3
C. 2
D. -7

Answer: A

Mathematics

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Evaluate the indicated partial derivative at the given point.z = 8, 

A.
B. 160
C. 120
D.

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Mathematics

Solve the inequality. Graph the results.13x - 2 ? 12x + 2

A. x ? 4

B. x < 13 

C. x ? 4 

D. x > 13 

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Mathematics

Simplify. Assume that variables represent positive real numbers.

A. 169x3 y12 z8 B. 13x3 y7 z5 C. 13x4 y12 z8 D. 169x4 y7 z8

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Mathematics

Determine whether the relation is a function. Give the domain and range.{(-3, -4), (-4, -3), (5, 8), (2, 4)}

A. not a function; domain: {-4, -3, 4, 8}; range: {-4, -3, 2, 5} B. function; domain: {-4, -3, 2, 5}; range: {-4, -3, 4, 8}

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Mathematics