Find the product or quotient. Write the answer in standard form.(5 - 9i)(5 + 3i)

A. 52 + 30i
B. 52 - 30i
C. -27i2 - 30i + 25
D. -2 - 60i


Answer: B

Mathematics

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Find the extreme values of the function and where they occur.y = (x - 5)2/3

A. There are no definable extrema. B. The minimum value is 0 at x = -5. C. The minimum value is 0 at x = 5. D. The maximum value is 0 at x = -5.

Mathematics

Solve. Write results using scientific notation.The national debt of a small country is $6,960,000,000 and the population is 2,665,000. What is the amount of debt per person?

A. $2.61 B. $2.61 x 106 C. $26.10 x 102 D. $2.61 x 103

Mathematics

Solve.Given that loga7 = 0.845, and loga2 = 0.301, find loga343.

A. 0.254 B. 1.146 C. 2.535 D. 0.603

Mathematics

Factor the binomial completely. If it is prime, say so.49k2 - 36m2

A. (7k - 6m)2 B. (7k + 6m)2 C. (7k + 6m)(7k - 6m)  D. Prime

Mathematics