Answer:
t = 2.25 seconds
Step-by-step explanation:
Let
x ----> the time in seconds that the ball traveled
H(t) ---> the height of the ball in feet
we have

we know that
When the ball hit the ground, the height of the ball is equal to zero
so
To find out the time the ball traveled, equate the function H(t) to zero
For H(t)=0

solve for t
Factor -16t

The solutions are

Answer: she needs to babysit 4 more times.
Step-by-step explanation:
19. 60* - a straight line is 180* - the other side which is 120* (supplementary)
20. 132* - the angle below is the same as the other side of this angle, 180* - 48* (same side interior angles)
21. 48* - these are the same angle just in different placements (corresponding angles)
22. 70* - same angles just different placement (alternate interior angles)
23. 85* - these are vertical angles so they’re the same
24. 114* - same angle just different placement (alternate exterior angles)