Ask your own question, for FREE!
Mathematics 17 Online
OpenStudy (dannyrod2000):

http://prntscr.com/4byyw7

OpenStudy (dannyrod2000):

@tejasvir

OpenStudy (tylerd):

you cant have a negative square root hint hint

OpenStudy (tylerd):

well

OpenStudy (tylerd):

i guess it could be imaginary but

OpenStudy (tylerd):

\[\sqrt{5x^2+20x}\] if we plug in -4 we get \[\sqrt{80-80}\]

OpenStudy (dannyrod2000):

So c?

OpenStudy (tylerd):

no because if we plug in -5 we actually end up with sqrt(125-100)

OpenStudy (dannyrod2000):

Oh ok

OpenStudy (dannyrod2000):

B

OpenStudy (tylerd):

yes but with my fail logic B and D should both be right

OpenStudy (tylerd):

sorry guess you should ask someone else

OpenStudy (dannyrod2000):

@iambatman

OpenStudy (anonymous):

What's the domain?

OpenStudy (dannyrod2000):

@iambatman how do i figure it out?

OpenStudy (tylerd):

does it say anything else?

OpenStudy (dannyrod2000):

no.

OpenStudy (dannyrod2000):

@iambatman

OpenStudy (tylerd):

id probably just guess D if no one can solve this for you

OpenStudy (dannyrod2000):

XD you got it right!

OpenStudy (tylerd):

nice

OpenStudy (anonymous):

Yes, that's the domain, XER x ≥ 0

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!