Factor completely.x2 + 7xy - 18y2

A. prime
B. (x - 9y)(x + y)
C. (x + 9y)(x - 2y)
D. (x - 9y)(x - 2y)


Answer: C

Mathematics

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Answer the question as instructed.Using the rules for the order of operations, what should be done first when evaluating the expression ?

A. Distribute the Square Root over 9, 8, and 4 B. Subtract: 4 - 3 C. Add: 8 + 4 D. Multiply: 9 ? 8

Mathematics

Graph the function f by starting with the graph of y = x2 and using transformations (shifting, compressing, stretching, and/or reflection).f(x) = x2 + 4x - 5 

A.

B.

C.

D.

Mathematics

Find the first term and the common ratio for the geometric sequence. Round approximations to the nearest hundredth.a2 = -4096, a7 = -4

A. a1 = -4, r = 4 B. a1 = -16,384, r = 0.25 C. a1 = -65,536, r = 0.25 D. a1 = -16, r = 4

Mathematics

Factor the trinomial.8z2 + 6z - 9

A. (8z + 1)(z - 9) B. (2z - 3)(4z + 3) C. (8z + 3)(z - 3) D. (2z + 3)(4z - 3)

Mathematics