Write the number in standard form a + bi.

A. 4 - i
B. 4 + i
C. 4 - 2i
D. 4 - i


Answer: A

Mathematics

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Decide what values of the variable cannot possibly be solutions for the equation. +  = 11

A. 1 B. -1, 0, 1 C. -1, 0 D. -1, 1

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Find the least common multiple (LCM) of the pair of numbers.18 and 30

A. 540 B. 18 C. 90 D. 3240

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Simplify.

A.
B.
C.
D.

Mathematics

Find all numbers for which the rational expression is not defined.

A. None B. c = 0 C. c = 7 D. c = -7

Mathematics