If the arrow is in the air, then when it hits the ground, h(t)=0. So:
0=-16t²+63t+4
16t²-63t-4=0
(16t+1)(t-4)=0
t= -1/16 or 4
Using the positive result of 4, we get t=4 seconds as the time the arrow was in the air
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Answer:
y
=
3
(
x
+
2
)
2
−
4
Step-by-step explanation:
Answer:all of the above
Step-by-step explanation:
It is a number that can be divided by 5 and equal 5 and it is whole.
Answer:
32:12
8:3
Step-by-step explanation:
If you multiply both sides of 16:6 you'll get 32:12
If you divide both side of 16:6 by 2 you'll get 8:3
The same thing needs to be done to both sides to make the ratio equivalent
Answer:
Anna is sick
Step-by-step explanation:
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