An apple falls out of a tree from a height of 64 feet. How long does it take to fall and hit Isaac Newton, assuming Newton is lying on the ground. Use h = -16t^2 + h_0

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

What is the expression in factored form? -20x^2 - 12x a. 4x(5x+3) b. -4x(5x-3) c. -4(5x+3) d. -4x(5x+3)

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply