Find the exact value of the expression.

A.
B.
C. - 
D. - 

Answer: C

Mathematics

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Find the matrix product, if possible. 

A.

B.

C.

D.

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Find the domain and the range for the function.

A. D: (0, ?), R: (1, ?) B. D: (-?, 7) ? (7, ?), R: (-?, 1) ? (1, ?) C. D: (-?, ?), R: (-?, ?) D. D: (-?, -7) ? (-7, ?), R: (-?, ?)

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Solve the problem.The decay of 956 mg of an isotope is given by  where t is time in years. Find the amount left after 33 years.

A. 161 mg B. 322 mg C. 925 mg D. 311 mg

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Perform the indicated operations. Simplify the answer.

A. -5 B. 5i C. 5 D. -5i

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Mathematics