Find the vertex of the parabola.-2x2 + 4x - y - 6 = 0

A.
B. (1, -4)
C.
D.


Answer: B

Mathematics

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Solve.If y varies inversely as x and x is 6 when y is 12, what is x when y is 5?

A. 14.4 B. 2.5 C. 0.4 D. 9.6

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Solve and simplify.m -  = 

A. = 
B. = 
C. = 
D. = 

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Evaluate the integral.

A. 6.13 B. 13.97 C. -7.87 D. -7

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Find the expression.u = , v = Find 3u - 7v

A.
B.
C.
D.

Mathematics