Factor completely. State that the polynomial is prime if it cannot be factored.5x3 - 15x2y - 90xy2

A. 5x(x - 6y)(x + 3y)
B. 5xy(x - 6y)(x + 3y)
C. 5(x - 6y)(x + 3y)
D. 5x(x + 6y)(x - 3y)


Answer: A

Mathematics

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Give the center and radius of the circle. Then sketch its graph.(x + 5)2 + (y + 1)2 = 16

A. center (- 5, - 1), r = 4

B. center (5, - 1), r = 4

C. center (5, 1), r = 4

D. center (- 5, 1), r = 4

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Use graphing calculator to find the inverse of the matrix. Give 5 decimal places.A =  

A.
B.
C.
D.

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Divide and, if possible, simplify. Assume all variables represent positive real numbers.

A. 2mn
B.
C. 4
D. 2

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Change the polar coordinates (r, ?) to rectangular coordinates (x, y).

A. (-2, 0) B. (2, 0) C. (0, 2) D. (0, -2)

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