Find all specified roots.Fifth roots of 1.

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

Answer: A

Mathematics

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Find the nominal interest rate that, when compounded monthly, yields an effective interest rate of 20% / year. Round your answer to the nearest hundredth. ? __________%

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Mathematics

Solve.A company has 63,000 employees. Of these, drive alone to work, car pool, use public transportation, cycle, and the remainder use other methods of transportation. How many employees use each method of transportation?

A. Drive alone: 2,100; car pool: 10,500; public transportation: 9,000; cycle: 7,000;
B. Drive alone: 21,000; car pool: 10,500; public transportation: 9,000; cycle: 7,000;
C. Drive alone: 21,100; car pool: 10,500; public transportation: 8,900; cycle: 7,000; other: 1000
D. Drive alone: 21,000; car pool: 10,500; public transportation: 9,000; cycle: 7,000;