Find all solutions in the interval [0,2pi] cos^2x + 3 cos x + 1 = 0 a) x = 2pi
b) x = pi
c) x = pi/4 , 7pi/4
d) x = pi/2 , 3pi/2

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7