Mathematics
12 Online
OpenStudy (anonymous):
solve for x
500e^(3x + 2) = 2500
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
e^(3x+2)=5
ln(e^(3x+2)=ln5
3x+2=ln5
x=(ln5-2)/3
OpenStudy (anonymous):
nice
OpenStudy (anonymous):
need explanation? feel free to ask!
OpenStudy (anonymous):
i follow
OpenStudy (anonymous):
what you did
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
glad i could help bro!
OpenStudy (anonymous):
how did you get the 5 on the right side of the equation
OpenStudy (anonymous):
dividing 2500 by 500
OpenStudy (diyadiya):
Divide both sides by 500 :)
OpenStudy (anonymous):
2500/500= 500
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (diyadiya):
No its 5
OpenStudy (anonymous):
hahaha my calc is on drugs
OpenStudy (anonymous):
i got it thanks
OpenStudy (anonymous):
what about this
log2 x + log2 (x-2) = 3
solve for x
OpenStudy (anonymous):
use brains as calc, usually better
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (diyadiya):
and btw people can answer closed questions tooo (you asked that in chat)
OpenStudy (anonymous):
log2 x*(x-2)=3
x^2-2*x=8
x'=4 x''=-2
OpenStudy (anonymous):
no, did not use calc
OpenStudy (anonymous):
just have a question about the 8, how did you get it?
OpenStudy (anonymous):
log definition loga b=c <=> c^a=b
just did like 2^(log2 x*(x-2))=2^3
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
thanks
OpenStudy (anonymous):
can you do this also
3ln(2x + 3) = 27
solve for x
OpenStudy (anonymous):
ln(2x+3)=9
e^(ln(2x+3))=e^9
2x+3=e^9
x=(e^9-3)/2
OpenStudy (anonymous):
3e^(1-x^2) times ln(x)
can you find the equation of the tangent line at x= 1
OpenStudy (anonymous):
sorry, didn't see it! gonna see what i can do now
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
didn't understand very well what is asked, post it as a separate question?