Write the number in scientific notation.20 × 10-3

A. 0.2 × 10-4
B. 2 × 10-2
C. 0.2 × 10-2
D. 2 × 10-1


Answer: B

Mathematics

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A. 9r2 + 7r + 
B. r2 + 3r + 7
C. 9r2 - 7r - 3
D. 9r2 + 7r + 3

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A.

B.

C.

D.

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Find the slope of the polar curve at the indicated point.r = 7(1 + cos?), ? = 

A. -1
B.
C. 6
D. -2

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Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log M-10

A. 10log M B. 10 + log M C. -10log M D. -10 + log M

Mathematics