Write an equivalent expression using negative exponents. Then simplify, if possible. -4

A. 81x4 
B.  
C.
D.  

Answer: D

Mathematics

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Rewrite the quadratic equation in the form ax2 + bx + c = 0, then identify a, b, and c. 3x2 + 13x - 15 = 0

A. a = 3, b = -13, c = 15 B. a = 3, b = 13, c = -15 C. a = 3, b = -13, c = -15 D. a = 3, b = 13, c = 15

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Mathematics

Answer yes or no.Is 13 a solution to the equation 28 + x = 15?

A. Yes B. No

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Mathematics

Solve the problem.Mark's typing speed is 68 words per minute. How many words can he type in 28 minutes?

A. 96 words B. 1804 words C. 1904 words D. 1914 words

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Mathematics

Find the first term and the common ratio of the geometric sequence.4, -0.4, 0.04, -0.004, . . .

A. a1 = -0.1, r = -0.01 B. a1 = 4, r = -0.1 C. a1 = -0.1, r = -1 D. a1 = 4, r = 0.1

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Mathematics