Use the substitution method to solve the system. y = 13 - 3x2x + 9y = -8

A. (5, -2)
B. (5, 2)
C. (-5, -2)
D. (-5, 2)

Answer: A

Mathematics

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Graph the polar equation.r = -  + cos ?

A.

B.

C.

D.

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Solve the equations by factoring.x2 + 7x - 44 = 0

A. -11, 4 B. 11, 4 C. 11, -4 D. -11, 1

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Rewrite the expression as a sum or difference of logarithms or multiples of logarithms.log11 

A.  log11(13) - 2 log11(y) - log11(x)
B. 5 log11(13) - 2 log11(y) - log11(5)
C. log11(13) - log11(y) - log11(x)
D.  log11(13) - 2 log11(y) - 2 log11(x)

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Solve. Write the answer as a mixed number in simplest form.Find the perimeter (distance around) of the polygon below. Each side of the polygon has the same length.  side length = 8 yd

A. 57 yd
B. 57 yd
C. 56 yd
D. 65 yd

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Mathematics