Using the given equation, it is found that it lands on the ground after 0.875 seconds.
<h3>What is the equation for the projectile's height?</h3>
It is given by:
![h(t) = -16t^2 + vt + h](https://tex.z-dn.net/?f=h%28t%29%20%3D%20-16t%5E2%20%2B%20vt%20%2B%20h)
In which:
- v is the initial velocity.
In this problem, considering that the projectile jumps straight into the air with an initial vertical velocity of 14 ft/s, the parameters are v = 14 and h = 0, hence:
![h(t) = -16t^2 + 14t](https://tex.z-dn.net/?f=h%28t%29%20%3D%20-16t%5E2%20%2B%2014t)
It lands on the ground when h(t) = 0, hence:
![-16t^2 + 14t = 0](https://tex.z-dn.net/?f=-16t%5E2%20%2B%2014t%20%3D%200)
![t(-16t + 14) = 0](https://tex.z-dn.net/?f=t%28-16t%20%2B%2014%29%20%3D%200)
Then:
![16t = 14](https://tex.z-dn.net/?f=16t%20%3D%2014)
![t = \frac{14}{16}](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7B14%7D%7B16%7D)
![t = 0.875](https://tex.z-dn.net/?f=t%20%3D%200.875)
It lands on the ground after 0.875 seconds.
More can be learned about equations at brainly.com/question/25537936
Answer:
I can't answer that question
Step-by-step explanation:
3 tables and is going to be 6 adults and 3 kids at each because you just have to divide 18 by 6
The sum of the first four terms of the series would be c. -102
Answer:
8
Step-by-step explanation:
The discriminant of ax² + bx + c = 0 is b² − 4ac.
Here, a = -1, b = 4, and c = -2.
b² − 4ac
(4)² − 4(-1)(-2)
16 − 8
8