Write the expression in the standard form a + bi.3

A. -4 + 4i
B. 4 - 4i
C. -4 - 4i
D. 4 - 4i

Answer: B

Mathematics

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Simplify the complex fraction.

A.
B.
C.
D. 6m6

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Mathematics

Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(4x - )( - )

A. 4x2 - 4x + 10
B. 4x2 + 10
C. 4x2 - 4x -  + 10
D. 4x2 - 3x  + 10

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Mathematics

Solve the problem.Alan is building a garden shaped like a rectangle with a semicircle attached to one short side. If he has 20 feet of fencing to go around it, what dimensions will give him the maximum area in the garden?

A. width =  ? 2.8, length = 5.6
B. width =  ? 5.6, length = 2.8
C. width =  ? 5.6, length = 7.2
D. width =  ? 3.6, length = 5.4

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Mathematics

Find the quotient.

A. 6 B. -6 C. -7 D. -5

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Mathematics