Evaluate the expression or indicate that the root is not a real number.

A. 25
B.
C. 7
D. 5

Answer: D

Mathematics

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Factor by grouping.72 - 9t - 8p + tp

A. (8 - t)(9 + p) B. (8 + t)(9 - p) C. (8 - t)(9 - p) D. (8 + t)(9 + p)

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Choose the closest estimate.Identify the most reasonable unit to measure the height of a house.

A. Kilometers B. Meters C. Millimeter D. Centimeters

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Mathematics

Express in terms of i.- 

A. 2i
B. 2
C. -2i
D. -2

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Mathematics

Find the identical expression for the following. ? ?

A. ?
B. ?
C. ?
D.
E. 1

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Mathematics