Write the expression in the standard form a + bi.(4 + 2i)(7 + 6i)

A. 16 + 38i
B. 40 - 10i
C. 12i2 + 38i + 28
D. 16 - 38i


Answer: A

Mathematics

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A. True B. False

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Simplify the radical expression by factoring out the largest perfect nth power. Assume that all variables are positive.

A. 2 +  
B. Not a real number
C. 2
D. 2

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Find the perimeter or circumference. Use ? ? 3.14 when needed.

A. 50 yd B. 74 yd C. 312.5 yd D. 75 yd

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Find the measure of each angle in the problem.

A. 100° and 80° B. 108° and 72° C. 60° and 40° D. 216° and 144°

Mathematics