Find all complex solutions.x4 + 8x2 - 9 = 0

A. ±1, ±3i
B. ±1, ±3
C. ±i, ±3i
D. ±3, ±i


Answer: A

Mathematics

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Find the limit if it exists.(6 - 4x)

A. 70 B. -70 C. -82 D. 82

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Provide an appropriate response.Perform the indicated operation, leaving the answer in lowest terms:  - 2 =

A.
B.
C.
D.

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Solve the problem.The population of a town was 30,900 at the beginning of 1970. If the population decreased 350 people per year, how many people lived in the town at the beginning of 1985?

A. 25,300 people B. 26,000 people C. 5250 people D. 25,650 people

Mathematics

Write the first four terms of the sequence.an = (-1)n - 1(9n - 5)

A. -4, 13, -22, -31 B. 4, -23, 22, -31 C. 4, 13, 22, 31 D. 4, -13, 22, -31

Mathematics