Solve.  + 11 = 13

A. 30
B. 15
C. -4033
D. 11

Answer: B

Mathematics

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Use completing the square to rewrite the equation in one of the standard forms for a conic and identify the conic.x2 + 8x - y + 12 = 0

A.  +  = 1; ellipse
B. y = (x + 4)2 - 4; parabola
C. x2 + y2 = 16; circle
D.  -  = 1; hyperbola

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Mathematics

Factor out the GCF.80x9y7 - 48x3y4 + 80x5y2

A. 16(5x9y7 - 3x3y4 + 5x5y2) B. 16x3y2(5x6y5 - 3y2 + 5x2) C. 16x3(5x6y7 - 3y4 + 5x2y2) D. No common factor

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Mathematics

Perform the indicated operation. Write the result in standard form.(7 + 7i)(2 + 6i)

A. -28 + 56i B. -28 - 56i C. 42i2 + 56i + 14 D. 56 - 28i

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Mathematics

Find the square root.

A. 1 B. 0 C. does not exist D. -1

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Mathematics