Mathematics 49 Online
OpenStudy (anonymous):

y varies directly as the square of R. if y=108 when R=6,find y when R=7??????

OpenStudy (anonymous):

y=kR^2

OpenStudy (anonymous):

uzma is right, 6^2=36 108/36=3 so k =3 when R is 7 y=3*7^2=147

OpenStudy (anonymous):

k=108/36=3 y=49*3

OpenStudy (anonymous):

y varies directly as the square of R. if y =16 when R=2 find y when R=7

OpenStudy (anonymous):

just put the values

OpenStudy (anonymous):

ok so what i have is y=kR^2 which would bring me out to R=7^2 which would be 49 which means y=k49 but then im lost I SUCK AT MATH AND i have a hard time comprehending how thigs work

OpenStudy (anonymous):

k=16/4=4 y=49*4

OpenStudy (anonymous):

ok i see now

Latest Questions
Alexis1415: What are some pills I could take for heart and liver pains?
1 hour ago 0 Replies 0 Medals
Bones: Matching pfps @alexis1415
3 hours ago 37 Replies 3 Medals
Kaydi: Why won't my computer let me zoom in
8 hours ago 0 Replies 0 Medals
Jesslovesjess: My cramps are slowly killing me
11 minutes ago 24 Replies 3 Medals
brianagatica14: Look at my view from my alley....
6 hours ago 7 Replies 3 Medals
Coco233: what do I do if I'm still inlove but he isn't ?
4 hours ago 1 Reply 0 Medals