Use the quadratic formula to find the exact solutions.x2 = 19 + 3x
A. 3, 19
B. 3 ± 
i
C. 
D. 
± 
i
Answer: C
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Express as a sum, difference, and product of logarithms, without using exponents.log16 
A. log16 (13
) + log16 y
B. log16 y - log16 13 - 
log16 x
C. log16 13 ? 
log16 x ÷ log16 y
D. log16 13 + 
log16 x - log16 y
Find parametric equations for the line described below.The line through the point P(-3, 3, -3) and perpendicular to the plane 
A. x = -7t - 3, y = 3t + 3, z = -3 B. x = 3t + 3, y = 7t - 3, z = 5t + 3 C. x = -3t + 3, y = -7t - 3, z = -5t + 3 D. x = 3t - 3, y = 7t + 3, z = 5t - 3
Use the Zero Exponent Rule to simplify. All variables are nonzero.
0
A. 0
B. 2
C. 
D. 1
Find the foci of the ellipse.5x2 + 3y2 - 20x + 18y + 32 = 0
A. (-2, 3 + 
) , (-2, 3 - 
)
B. (2, -3 + 
) , (2, -3 - 
)
C. (2 + 
, -3) , (2 - 
, -3)
D. (2, -3 + 
) , (2, -3 - 
)