Valorar:
a =9 b = -2 c = 5 d = -3

1) a+b-c/3d - c- a/2b

Acar traveling at 65 mph leaves 25 foot skid mark what is the ratio of the speed to length of skid mark (feet) in the simplest form

Find the vertex of the function given below y=x^2-6x+1

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4