A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 one year ago
when serving in tennis a player tosses the tennis ball vertically in the . The height h of the ball after t seconds is given by the quadratic function h(t)=5t^2+7t (the height is measured in meters from the point of the toss.)
a. How high in the air does the ball go?
b. Assume that the player hits the ball on its way down when it's 0.6m above the point of the toss. For how many seconds is the ball in the air between the toss and the serve?
 one year ago
when serving in tennis a player tosses the tennis ball vertically in the . The height h of the ball after t seconds is given by the quadratic function h(t)=5t^2+7t (the height is measured in meters from the point of the toss.) a. How high in the air does the ball go? b. Assume that the player hits the ball on its way down when it's 0.6m above the point of the toss. For how many seconds is the ball in the air between the toss and the serve?

This Question is Closed

Emily778
 one year ago
Best ResponseYou've already chosen the best response.0First sentence is in the air. Oops

satellite73
 one year ago
Best ResponseYou've already chosen the best response.1\[h(t)=5t^2+7t\] max is the second coordinate of the vertex first coordinate of the vertex is always \(\frac{b}{2a}\) which in your case is \[\frac{7}{2\times (5)}=\frac{7}{10}=.7\] second coordinate is what you get when you replace \(t\) by \(.7\) and that is your maximum height
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.