Solve and check.9y2 + 27y + 20 = 0

A. - , - 
B. - , - 
C.
D. , - 


Answer: A

Mathematics

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Solve the problem.Find an equation for the level surface of the function f(x, y, z) = ln that passes through the point .

A. ln   = 9
B. ln   = 
C.    = e11
D.    = e9

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Add.1.731 + 62

A. 63.841 B. 63.731 C. 63.732 D. 63.721

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Find the prime factorization of the number.14

A. 2 + 7 B. 2 ? 9 C. 2 ? 8 D. 2 ? 7

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Solve the problem.A computer company invested a total of $400 million in research and development in its scanners and video digitizers. If the amount the company spent on research and development on scanners was $146 million more than was spent on research and development on its video digitizers, how much in fact did the company spend on research and development on its scanners?

A. $200 million B. $273 million C. $127 million D. $400 million

Mathematics