Perform the indicated operation.(-84) ÷ 21

A. - 
B. 4
C. -4
D. -14


Answer: C

Mathematics

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A.  + C
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C. -esin-1 x + C
D.  + C

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Select the more reasonable temperature for the item.Room temperature20°C20°F

A. 20°F B. 20°C

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Determine whether matrix B is the inverse of matrix A by finding the product AB.A = , B = 

A. B = A-1 B. B ? A-1

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Evaluate the expression.

A. 1 B. 11 C. 0 D. 39,916,800

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