A hang glider pilot accidentally drops her compass from the top of a 400-foot cliff. The height h of the compass after t seconds
is given by the quadratic equation h=−16t2+400. When will the compass hit the ground?
1 answer:
Answer:
5 seconds
Step-by-step explanation:
H= -16t2 + 400
Hit ground
H=0
0 = -16t2 + 400
0 = -16 ( t2 - 25)
-16
t2 -25 = 0
(t + 5)(t - 5) = 0
t + 5 = 0
- 5 -5
t = -5
t - 5 = 0
+ 5 +5
t = -5
t = 5
5 seconds to hit the ground
You might be interested in
Answer:
16q + 32r
Step-by-step explanation:
The answer is D) an assortment
Multiplying a - and a + equals a - , -8r18
If the glasses hold two cups of liquid then you simply have to remember that there are 8 oz. in one cup.
so 8 times 2 = 16 oz. in two cups
It would be a x/n = n √a^x
Hope this helps
