Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Nick2019 Group Title

Frank kicks a soccer ball off the ground and in the air with an initial velocity of 30 feet per second. Using the formula H(t) = −16t2 + vt + s, what is the maximum height the soccer ball reaches? 14.1 feet 13.7 feet 13.2 feet 15.2 feet

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. zepp Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    We are looking for the highest point of a facing down parabola, therefore the vertex of the parabola.

    • 2 years ago
  2. zepp Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    |dw:1341586592338:dw|

    • 2 years ago
  3. SmoothMath Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Do your thing, Zeppy.

    • 2 years ago
  4. Nick2019 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so this means??

    • 2 years ago
  5. Nick2019 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    lol i should have read the chapter :/

    • 2 years ago
  6. zepp Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    |dw:1341586632841:dw|

    • 2 years ago
  7. zepp Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    Oh

    • 2 years ago
  8. SmoothMath Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    GAHAHAHA YEEEESSSS

    • 2 years ago
  9. Nick2019 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    lol so whats the answer, nice drawing

    • 2 years ago
  10. SmoothMath Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    The eeeeye, it sees everything!

    • 2 years ago
  11. Nick2019 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    lol i moved my webcam away from me haha

    • 2 years ago
  12. zepp Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    H(t) = −16t2 + vt + s Represents the equation of your parabola, we are looking for the vertex, the x-value of the vertex could be found by using the formula \[\frac{-b}{2a}\]

    • 2 years ago
  13. Nick2019 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so one of these 14.1 feet 13.7 feet 13.2 feet 15.2 feet

    • 2 years ago
  14. zepp Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    Now, 30 feet per second. v=30 H(t) = −16t2 + 30t + s

    • 2 years ago
  15. zepp Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    Use the formula I wrote above :)

    • 2 years ago
  16. Nick2019 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    dont know how to solve that :/ i just need the answer no offence

    • 2 years ago
  17. Nick2019 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ok il guess thanks for the help (in a good way)

    • 2 years ago
  18. zepp Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    A quadratic equation is \(ax^2+bx+c\) Where the x of the vertex is at \(\large \frac{-b}{2a}\) In our equation H(t) = −16t2 + 30t + s b is 30 and a is -16 \[\frac{-30}{2(-16)}=\frac{-30}{-32}=\frac{30}{32}\]

    • 2 years ago
  19. zepp Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    What you have to do next it to replace this x-value back into the equation to find the height (y-value) And sorry I'm at work so I was afk :(

    • 2 years ago
  20. Sav_1012 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    what is it

    • 11 months ago
    • Attachments:

See more questions >>>

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.