Use the quadratic formula to solve the equation.4x2 - 3x - 7 = 0

A.
B.
C.
D.

Answer: D

Mathematics

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Solve the inequality. Graph the solution set and write it in interval notation.x + 12 < 20

A. (8, ?)

B. (-?, 8]

C. (-?, 8)

D. [8, ?)

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Write a signed number for the statement.$3343 out of debt

A. -3343 B. 3343 

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Solve the equation.-x = 50

A. {1} B. {50} C. {0} D. {-50}

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Solve the problem.The voltage E in an electrical circuit is given by E = 3.6 cos 90?t, where t is time measured in seconds. Find the amplitude.

A. 90? B. 3.6 C. 7.2 D. 90

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