Write the number in scientific notation.The treasurer's records showed a debt of $8375.

A. $8.375 × 103
B. $8.375 × 101
C. $8.375 × 10-3
D. $8.375 × 104


Answer: A

Mathematics

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Find the magnitude and direction angle (to the nearest tenth) for each vector. Give the measure of the direction angle as an angle in [0,360°].

A. 12; 45°
B. 6; 45°
C. 6; 135°
D. 6; 225°

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Perform the indicated operation. Write the answer in scientific notation.

A. 7.20 × 10-23 B. 2.29 × 10-23 C. 1.56 × 10-27 D. 8.95 × 1010

Mathematics

Write and solve an equation to find the percent increase or decrease. Round your answer to the nearest tenth of a percent, if necessary.A carpeted living room and dining room area measures 34 ft by  Mark decides to install wood flooring in the  by  dining room. By what percent has he reduced the area that is carpeted?

A. 61.8% B. 38.2% C. 11% D. 61.9%

Mathematics

Perform the indicated operation and reduce to lowest terms. + 

A.
B.
C.
D.

Mathematics