Express the number in scientific notation.0.0000061819

A. 6.1819 × 106
B. 6.1819 × 10-7
C. 6.1819 × 10-5
D. 6.1819 × 10-6

Answer: D

Mathematics

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Find Dxy.sinh (tan 9x)

A. 9 cosh(tan 9x) sec2 9x
B.  
C. - 9 cosh(tan 9x) sec2 9x
D. cosh(tan 9x) sec2 9x

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Mathematics

For the given polar equation, write an equivalent rectangular equation. 7r cos ? + 8r sin ? = 1

A. 7x + 8y = x2 + y2
B. 7y + 8x = 1
C.  +  = 1
D. 7x + 8y = 1

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Mathematics

Simplify.-5p4

A. -10p8
B. -40p8
C. -10p16
D. -10p4

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Mathematics

Use a calculator to evaluate . Round your answer to four decimal places.

A. -0.9589 B. 0.0872 C. -0.4128 D. -0.4282 E. -1.7089

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Mathematics