Choose the most appropriate method for solving the system of equations. Do not solve.  x + y = 30605x + 4y = 8590

A. Substitution
B. Addition


Answer: A

Mathematics

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Perform the indicated division by synthetic division.(5x3 + 11x2 - 17x - 15) ÷ (x + 3)

A. -5x2 - 3x - 5, R = 0 B. 5x2 + 11x - 17 , R = 0 C. 5x - 4, R = 0 D. 5x2 - 4x - 5, R = 0

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For a right triangle with legs a = 9 and b = 12, use the Pythagorean Theorem to find the hypotenuse c.c = ________

Fill in the blank(s) with the appropriate word(s).

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Factor out the greatest common factor.14x3 - 28x2 + 21x

A. 7x(2x2 - 28x2 + 21x) B. 7(2x3 - 4x2 + 3x) C. 7x(2x2 - 4x + 3) D. 14x(x2 - 2x + 3)

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Determine the number of terms in the expression.6 + 3x

A. 3 B. 2 C. 1 D. 9

Mathematics