Write the equation of the parabola that has a vertex at the origin and a focus at (-4,0)

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

Light travels at 186,000 miles per second. light takes about 1 1? 3 seconds to travel from the earth to the moon. calculate the distance between the earth and the moon based on the speed of light.