Combine like terms, if possible.6x - 6x2 + 3x2

A. 9x2 + 6x
B. -3x2 + 6x
C. 3x2 + 6x
D. -9x2 + 6x


Answer: B

Mathematics

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A. Finite B. Infinite

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Find the area of the shaded region. ?

What will be an ideal response?

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Provide an appropriate response.Explain the error in the following: log43y = log43 ? log4y.

What will be an ideal response?

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Suppose that a certain radioactive substance has a half-life of 45 years. If there are presently 1,920 milligrams of the substance, how much, to the nearest milligram, will remain after 180 years? 

A. Q = 130 milligram B. Q = 120 milligram C. Q = 135 milligram D. Q = 95 milligram E. Q = 125 milligram

Mathematics