Find an equation of a parabola satisfying the given conditions.Focus at (-4, 0), directrix x = 4

A. y2 = 16x
B. 16y = x2
C. y = - x2
D. x = - y2


Answer: D

Mathematics

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Find v ? u.v =  and u = 

A. 0
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C. i
D.

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Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.

A.
B.
C.
D.

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Multiply the binomials.(-3x + 7)(-4x + 4)

A. -7x2 - 40x + 28 B. 12x2 - 40x + 28 C. -7x2 - 40x - 40 D. 12x2 - 40x - 40

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Write  <  or  >  between the pair of numbers to make the statement true.9 ? -8

A. < B. >

Mathematics