Express the number in terms of j.

A. 7j
B. -j
C. -7j
D. j

Answer: A

Mathematics

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Evaluate the cylindrical coordinate integral.

A. 2,310,000?
B. 1,540,000?
C. ?
D. 1,925,000?

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Decompose v into two vectors v1 and v2, where v1 is parallel to w and v2 is orthogonal to w.v = i + 5j,w = i + j

A. v1 = 3i + 3j, v2 = 2i - 2j
B. v1 = 3i + 3j), v2 = -2i + 2j
C. v1 = 6i + 6j, v2 = -4i + 4j
D. v1 = i + j, v2 = - i + j

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Mathematics

Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.x-2/5 ? x3/5

A. x1/5 B. x5/6 C. x-1/5 D. x6/5

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Mathematics

Write each ratio or rate as a fraction in simplest form.$70 to $133

A. $ 
B. $ 
C.  
D.  

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Mathematics