Find the real or imaginary solutions by completing the square.a2 - 2a - 24 = 0

A. {6-4}
B. {-20, -4}
C. {±2}
D. {-6, 4}


Answer: A

Mathematics

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Solve. Round your answer to the nearest tenth.Find the area of a circle with a radius of 11.5 yards.

A. 144.4 yd2 B. 1661.1 yd2 C. 72.2 yd2 D. 415.3 yd2

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Find the limit of the sequence if it converges; otherwise indicate divergence.an = 1 + (-1)n + (-1)n(n+1)

A. 0 B. 1 C. 3 D. Diverges

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Solve the problem.If the formula P = 0.5643Y - 1092.57 can be used to predict the average price of a theater ticket after 1945, for what years will the average theater ticket price be at least 43 dollars? (Y is the actual year.)

A. 2015 or after B. 2013 or after C. 2023 or after D. 2011 or after

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Solve the equation by factoring.2x2 = -27x - 81

A. x = 9, 
B. x = 9, - 
C. x = - , -9
D. x = -9, -18

Mathematics