Multiply or divide as indicated.(-3)(-4)(5)

A. 160
B. 60
C. -60
D. 50

Answer: B

Mathematics

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Write the conjugate  of the complex number z. Then find z.z = 8 + 3i

A.  = 8 - 3i, z = 64 - 9i2
B.  = 8 - 3i, z = 73
C.  = 8 - 3i, z = 55
D.  = 8 - 3i, z = 64 - 9i

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Mathematics

Solve the problem.Calculate the present value of an annuity of $300 per quarter for nine years at 6% interest compounded quarterly.

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

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Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.

A. inconsistent B. x = -4, y = 2; (-4, 2) C. x = 2, y = -4; (2, -4) D. x = -4, y = -2; (-4, -2)

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Mathematics

Factor by grouping.3x2 - 9xy + 4xy - 12y2

A. (3x + 4y)(x - 3y) B. (3x - 4y)(x - 3y) C. (3x + 4y)(x + 3y) D. (3x2 + 4y)(1 - 3y)

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Mathematics