Find the sum.-8.5 + [(-1.4) + (-8.9)]

A. -18.8
B. 1
C. -1.8
D. 16

Answer: A

Mathematics

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A.
B.
C.
D.

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Factor by grouping.15x6 + 6x3 - 20x3 - 8

A. (3x3 + 4)(5x3 - 2) B. (3x6 - 4)(5x + 2) C. (3x3 - 4)(5x3 + 2) D. (15x3 + 4)(x3 - 2)

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Use the even-odd properties to find the exact value of the expression. Do not use a calculator.cot 

A. -
B. 1
C. -1
D. - 

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