Solve the rational inequality. ? 6x

A. [0, 6] ? [7, ?)
B. [7, ?)
C. (-?, 0] ? [6, 7)
D. (-?, 6] ? [7, ?)


Answer: C

Mathematics

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Find the exact value of the expression or state that it does not exist.cos-1  

A.
B.
C. 0
D. ?

Mathematics

Provide the proper response. is continuous at a. What value(s) of a allow(s) this statement to be true? Give a complete list of the values a could have.

A. The function would be continuous if a were -1, 0, or 1. B. The function would be continuous if a were 1. C. The function would be continuous if a were 0. D. The function would be continuous if a were either 0 or 1.

Mathematics

A retired woman has $130,000 to invest. She has chosen one relatively safe investment fund that has an annual yield of 9% and another, riskier one that has an annual yield of 13%. How much should she invest in the fund yielding 9% if she would like to earn $14,000 per year from her investments? ? 

A. $11,700 B. $16,900 C. $57,500 D. $72,500 E. $113,100

Mathematics

Rewrite the logarithm as a ratio of natural logarithms. ? ?

A.
B.
C.
D.
E. None of these

Mathematics