Perform the matrix operation.Let B = . Find -2B.

A.
B.
C.
D.


Answer: B

Mathematics

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Round the whole number to the given place value.40,785,268, millions

A. 40,785,000 B. 40,000,000 C. 40,800,000 D. 41,000,000

Mathematics

Find the perimeter.

A. (2x2 + 7x + 32) units B. (x2 + 5x + 38) units C. (2x2 + 7x + 38) units D. (2x2 + 5x + 38) units

Mathematics

Find the value of the combination.C(7, 7)

A. 1,260 B. 1 C. 0.5 D. 5,040

Mathematics

Tell whether a linear model or a quadratic model is appropriate for the data. If a quadratic model is appropriate, then decide also whether the lead coefficient should be positive or negative.The height of a bouncing ball during one bounce, as a function of time.

A. Linear B. Quadratic; leading coefficient negative C. Quadratic; leading coefficient positive

Mathematics