Write the expression in the standard form a + bi.(-2 + 5i)(3 + i)

A. -1 + 13i
B. -1 - 17i
C. -11 + 13i
D. -11 - 17i

Answer: C

Mathematics

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Find the intersection.3x + 4y = -7,  -3y - 5z = 4

A. x = -20t + 5, y = 15t + 4, z = -9t
B. x = -20t - , y = 15t - , z = -9
C. x = -20t + , y = 15t + , z = 9t
D. x = -20t - , y = 15t - , z = -9t

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Mathematics

Solve.The enrollment at a local college increased 7% over last year's enrollment of 800. Find the current enrollment.

A. 856 students B. 1360 students C. 56 students D. 807 students

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Mathematics

Provide an appropriate response.Simplify and express the answer using positive exponents: 

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

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Mathematics

Multiply or divide as indicated. ÷ 

A.
B.
C.
D.

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Mathematics