Write the number as the product of a real number and i.- 

A. -11i
B. 11
C. i
D. 11i


Answer: A

Mathematics

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A.
B.
C.
D.

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Use the empirical probability formula to solve the exercise.Two coins are tossed 20 times and the number of tails is observed.What is the probability that exactly one tail occurred?

A.
B.
C.
D. 1

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How many small squares must be shaded to represent the given percentage of the large rectangle shown?35%

A. 15 B. 24 C. 21 D. 27

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Use DeMoivre's Theorem to write the expression in rectangular form.3

A. 64
B. 8 + 6i
C. 8
D. -2 + 2i

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