A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
can anyone help me with this question? the function d(s)=0.0056s^2 +0.14s models the stopping distance of a car, d(s), in metres, and the speed, s, in kilometres per hour. What is the speed when the stopping distance is 7m? Use a graph to solve.
anonymous
 5 years ago
can anyone help me with this question? the function d(s)=0.0056s^2 +0.14s models the stopping distance of a car, d(s), in metres, and the speed, s, in kilometres per hour. What is the speed when the stopping distance is 7m? Use a graph to solve.

This Question is Closed

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0plug your information into the equation (hard to graph stuff on here): 7 = .0056s^2 +.14s 0 = .0056s^2 + .14s 7 either factor or use the quadratic formula to solve.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thanks, but i dont know what to factor out in the second equation, thats where i got stuck

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0thinking.....(12% loaded).....

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0if I did it right, and thats a BIG if... s = 28 better plug it in to double check...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0ack!! not correct....

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how did u get it? im so lost :p

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0lol .... I just plugged it into the quadratic formula but made a mistake somewhere... gonna try it again :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0alright, thank you (:
Ask your own question
Sign UpFind 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.