If line d intersects plane f, then how many points on line d also lie on plane f?

0
1
2
infinite

Which formula gives the area of a triangle? a=1/2(b+h)

The quadratic function h(t) = -16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after its dropped from a 15 story building. from what height in feet was the ball dropped?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much