Ask your own question, for FREE!
Mathematics 7 Online
OpenStudy (legomyego180):

Anybody feel like doing a related rates problem?

OpenStudy (legomyego180):

OpenStudy (legomyego180):

|dw:1465613392977:dw|

OpenStudy (legomyego180):

So a^2+b^2=c^2 I have da/dt but need db/dt while c is constant

OpenStudy (legomyego180):

So ill use the pythagorean thorum to get my missing values then take the derivative of the area formula to solve for dA/dT

OpenStudy (legomyego180):

But everytime I do this I do something incorrectly

OpenStudy (zarkon):

show what you get

OpenStudy (zarkon):

what is \(b\)? what is \(\frac{db}{dt}\)?

OpenStudy (legomyego180):

one moment

OpenStudy (daniel.ohearn1):

So first what is your equation for the area?

OpenStudy (legomyego180):

OpenStudy (legomyego180):

Sorry x should be dB/dT

OpenStudy (zarkon):

\[\frac{d}{dt}[c^2]=0\]

OpenStudy (legomyego180):

ah

jimthompson5910 (jim_thompson5910):

|dw:1465615302835:dw|

jimthompson5910 (jim_thompson5910):

after finding the function dA/dt, you'll then plug in x = 15

OpenStudy (legomyego180):

OpenStudy (zarkon):

correct

OpenStudy (legomyego180):

Thank you sir

jimthompson5910 (jim_thompson5910):

I'm getting 119/4 as well. Nice job

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!