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
B. i -
j
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.
Mathematics
Multiply the binomials.(-3x + 7)(-4x + 4)
A. -7x2 - 40x + 28 B. 12x2 - 40x + 28 C. -7x2 - 40x - 40 D. 12x2 - 40x - 40
Mathematics
Write < or > between the pair of numbers to make the statement true.9 ? -8
A. < B. >
Mathematics