Express the number in scientific notation.0.000315

A. 3.15 × 10-3
B. 3.15 × 104
C. 3.15 × 10-4
D. 3.15 × 10-5


Answer: C

Mathematics

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A. y - 2 = x + 2 B. y = -3x - 4 C. y - 2 = -3x + 2 D. y = -3x + 4

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Perform the indicated operation. Write the answer without exponents.

A. 2250 B. 225 C. 22.5 D. 2.25

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Solve the problem.From a boat on the lake, the angle of elevation to the top of a cliff is 34°34'. If the base of the cliff is 2375 feet from the boat, how high is the cliff (to the nearest foot)?

A. 1646 ft B. 1639 ft C. 1649 ft D. 1636 ft

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Solve the inequality. Express your answer using interval notation. Graph the solution set.|2k + 6| - 3 > 4

A. (- )

B. (-?, - ] ? [, ?)

C. (-?, - ) ? (, ?)

D. (, ?)

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