![subject](/tpl/images/cats/mat.png)
Mathematics, 04.05.2021 01:00 abby28734
A ball is thrown upward at a velocity of 15 meters per second from a height that is 20 meters above the ground. The heighth (in meters) of the ball at timet (in seconds)
after it is thrown can be found by the formula below.
h = -5t2 + 15t + 20
Find the time when the ball is again 20 meters above the ground.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:20
What are the soultion(s) to the quadratic equation 40- x^2=0
Answers: 1
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:00
Manny bought 12 pounds of vegetables at the supermarket. 75% of the vegetables were on sale. how many pounds of vegetables were not on sale? 98 points : )
Answers: 2
![question](/tpl/images/cats/mat.png)
You know the right answer?
A ball is thrown upward at a velocity of 15 meters per second from a height that is 20 meters above...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 22:00
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 22:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 22:00
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 22:00
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/en.png)
English, 08.07.2019 22:00
![question](/tpl/images/cats/istoriya.png)
History, 08.07.2019 22:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 22:00
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 22:00
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 22:00
![question](/tpl/images/cats/istoriya.png)
History, 08.07.2019 22:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 22:00
![question](/tpl/images/cats/istoriya.png)
History, 08.07.2019 22:00