Dan drove 512miles in 8hours. what was hos average speed for the trip

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

Solve the equation by completing the square. x^2+2x=17

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas