Write the expression in the standard form a + bi.-6i(-3 + 9i)

A. 54 + 18i
B. 18i - 54i2
C. 18i + 54i2
D. -54 + 18i


Answer: A

Mathematics

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A. -1 B. 125 C. -9 D. 1125

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Simplify the expression.12x + 12 - 28x - 4

A. 40x + 16 B. -16x + 12 - 4 C. 16x + 8 D. -16x + 8

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A. -1 B. -10 C. -3 D. -4

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Solve the inequality and graph. Express your answer in interval notation.-3(3x - 2) < -12x - 21

A. (-9, ?)

B. [-9, ?)

C. (-?, -9]

D. (-?, -9)

Mathematics