
Using the quadratic formula we get

Therefore the tennis ball is at least 15 feet above the ground from 0.5 seconds to 2.04 seconds
Answer: 48
Step-by-step explanation: COB and DOA are vertical angles. This means the two of them have the same measure. Because we know the measuremen of DOA, we can easily find the measuremen for COB since these angles are the same, so COB is 48 degrees.
Answer:
9-3x=20
Step-by-step explanation:
It is the wordplay
ANSWER:
86 YELLOW
y=yellow
b=blue
y=5b-9
y+b=105
5b-9+b=105
6b=114
b=19