Solve the problem.The speed of light is 1.86 × 105 miles per hour. Express this quantity in standard notation.

A. 18,600,000
B. 186,000
C. 1,860,000
D. .0000186


Answer: B

Mathematics

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A. 0 B. -2, -8 C. 2, -8 D. 2, -2

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Solve the system of equations.

A. (-5, 6) B. (-6, 6) C. (8, -8) D. (6, -6)

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Divide and simplify.

A. 27r5 - 45r3 B. 3r6 - 5r4 C. 3r7 - 5r5 D. 3r5 - 5r3

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Solve the problem.The population of a town was 30,900 at the beginning of 1970. If the population decreased 350 people per year, how many people lived in the town at the beginning of 1985?

A. 25,300 people B. 26,000 people C. 5250 people D. 25,650 people

Mathematics