Simplify the expression.
?

?

A.
B. 0
C. ?
D. ?
E. already simplified


Answer: C

Mathematics

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C. v = -5i + 5j
D. v = 5i - 5j

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Solve the problem.A ball is thrown directly upward from the top of a building that is 128 feet high. The height of the ball after t seconds is given by the trinomial  feet. Write this polynomial in factored form.

A. 16(t2 + 2t + 4) B. -16(t + 2)(t - 4) C. -16(t2 + 2t + 4) D. 16(t - 2)(t + 4)

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Suppose the point (2, 4) is on the graph of y = f(x). Find a point on the graph of the given function.The reflection of the graph of y = f(x) across the x-axis

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