Find the prime factorization of the given composite number.679

A. 7 ? 95
B. 7 ? 97
C. 7 ? 7
D. 7 ? 7 ? 97


Answer: B

Mathematics

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Which fraction is in simplest form for the fraction: ? ?

A.

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B.

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C.

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D.

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E.

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Mathematics

Find the unit tangent vector T and the principal unit normal vector N. r(t) = (1 + t)3/2i   + (1 - t)3/2j  + 2tk 

A. T = i  - j + k; N = i + j
B. T = i + j + k; N = i  + j 
C. T = i - j + k; N = i + j 
D. T = 4i - 4j + 2k; N = 3i + 3j

Mathematics

Find a rectangular-coordinate equation for the curve by eliminating the parameter.

Mathematics

Use the root test to determine if the series converges or diverges.

A. Diverges B. Converges

Mathematics