A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Please help! A kicker kicks a football toward the opponent's goal line during a game. The ball begins its flight with an initial velocity of 100 feet per second when it is kicked at a height of 3 feet by the kicker. To the nearest foot, what maximum height will the ball reach? You may use the function: h(t)=-16t^2+100t+3 100 feet 129 feet 159 feet The answer cannot be determined

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Do you know how to use the quadratic formula?

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I think that's what you use

  3. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    \(\large{(\dfrac{-b}{2a},f(\dfrac{-b}{2a}))}\)

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i don't get it, what would i do after finding -b/2a?

  5. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    first find a and b

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    a= -16 b=100 right?

  7. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    \(f(x)=ax^2+bx+c\)

  8. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yes so plug it in

  9. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    25/8

  10. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    \(\dfrac{-100}{2*(-16)}\)

  11. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    2* - 16 = 32 -100/ 32 = -3.125

  12. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    now plug that in

  13. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait why is it negative? -/- is positive??

  14. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    oh sorry didn't see that :P

  15. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    -100/-32

  16. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    so 3.125

  17. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh okay so 3.125 do i plug it into the given function

  18. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yes put it instead of t

  19. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay i got 159!

  20. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    so 159 is your answer :D

  21. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you!! :)

  22. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yw :)

  23. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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
  • 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.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.