In the quadratic equation 2x2 + 11x – 40 = 0, the value of b is

If angle 2=3x +1 and angle 3=2x +4what is angle 2

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?