Which of the following is an example of a real number that is not an integer?

A.
B. -2.5
C.
D.
E. -3

Answer: B

Mathematics

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Graph the function defined by a radical expression. Give the domain and range. = 

A. Domain: [8, ?);
Range: (-?, ?)

B. Domain: (-?, ?);
Range: [8, ?)

C. Domain: (-?, ?);
Range: [-8, -?)

D. Domain: [-3, 3];
Range: [0, 8]

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Mathematics

Divide.-  ÷ 

A. -1
B. 5
C. -5
D. -  

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Mathematics

Find the critical number(s), if any, of the function

a. 4 b. ?4 c. ±?7 d. ±7

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Mathematics

Determine whether the given ordered set of numbers is a solution of the system of equations.(6, -2)x + y = 4x - y = 8

A. No B. Yes

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Mathematics