Evaluate. The differential is exact.

A. 0
B. 4e8 + 20
C. 4e8 + 21
D. 4e8 + 12

Answer: B

Mathematics

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Find the limit, if it exists.

A. Does not exist B. 15 C. 0 D. 30

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Find the domain and range of the function.f(x) = 9 - x2 

A. Domain: (-?, 9]; Range:[-9, ?) B. Domain: (-?, ?); Range: (-?, 9] C. Domain: (-?, ?); Range:(-?, -9] D. Domain: (-?, ?); Range:[9, ?)

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Multiply. ? 

A.
B.
C.
D.

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Divide the real numbers. Write any improper fraction as a whole or mixed number where appropriate.-3 ÷ 2

A. 1
B. - 
C.
D. - 1

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