Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

osanseviero Group TitleBest ResponseYou've already chosen the best response.1
Natural domain of \[f(x)=\frac{ 1 }{ x3 }\] g(x)=5x \[(Fog)(x)\] It is x\[x \in[1,infinite)\] ?
 9 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
what did you get for f(g(x)) = .... ?
 9 months ago

osanseviero Group TitleBest ResponseYou've already chosen the best response.1
Let me do it, give me a sec
 9 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
sure, take your time :)
 9 months ago

osanseviero Group TitleBest ResponseYou've already chosen the best response.1
\[\sqrt{24x}\]
 9 months ago

osanseviero Group TitleBest ResponseYou've already chosen the best response.1
ooops sorry, confused question, give me another sec
 9 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
am i reading the question correct ? f(x) =1/ (x3) g(x) =5x ? i don't see ..... oh, okk
 9 months ago

osanseviero Group TitleBest ResponseYou've already chosen the best response.1
Sorry, the mistake was the question
 9 months ago

osanseviero Group TitleBest ResponseYou've already chosen the best response.1
\[f(x)=\sqrt{x+1}\] g(x)=14x
 9 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
yes, f(g(x)) is correct then
 9 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
now quantity under square root cannot be negative
 9 months ago

osanseviero Group TitleBest ResponseYou've already chosen the best response.1
So the domain is x<= 1/2 for the square root, and I take the intersection
 9 months ago

osanseviero Group TitleBest ResponseYou've already chosen the best response.1
[1,1/2]
 9 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
yep, thats correct! good :)
 9 months ago

osanseviero Group TitleBest ResponseYou've already chosen the best response.1
So I need to take the domain of FoG with \[\left\{ x \in Dgg(x)\in Df \right\}\]
 9 months ago

osanseviero Group TitleBest ResponseYou've already chosen the best response.1
And intersect that with the domain of the last result?
 9 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
i am not sure about what that notation says, but yes, you take the intersection domains of both the funtion with composite function to get the final domain
 9 months ago

osanseviero Group TitleBest ResponseYou've already chosen the best response.1
Perfect, thanks
 9 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
welcome ^_^
 9 months ago
See more questions >>>
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.