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

jackoo Group TitleBest ResponseYou've already chosen the best response.0
\[3 \sqrt[3]{24}\]
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Hint:\[\sqrt[3]{24}=\sqrt[3]{8\cdot3}=\sqrt[3]8\cdot\sqrt[3]{3}\]
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Can you write the answer?
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
\[6\sqrt[3]{3}\]
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Very nice.
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
Could you help me with another question?
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
\[3\sqrt{x+4}2=13\]
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
What is the problem?
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
What cant you do?
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Solve for \(\sqrt{x+4}\).
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Hey! Are you here?
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
Yes, I am sorry
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
couldn't I just do 42 giving me 2 so then I do x+2=13?
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
x+2=13 2 2 x=11
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Can you solve \(3y2=13\) ?
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Yes. Think if \(y=\sqrt{x+4}\).
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
If you make a substitution \(y=\sqrt{x+4}\), you will get \(\sqrt{x+4}=5\). Do you know what \(\sqrt{\phantom{a}}\) sign means?
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
square root
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
What does square root means?
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
a number multiplied by itself?
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Can you tell me what does \(\sqrt{16}\) mean?
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Yes. But Also 4 too. 4*(4)=16. So what can you say about \(\sqrt{x+4}=5\) ?
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
I don't think I know
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
See the analogy. Try to think. Compute \(\sqrt{36}, \sqrt{25}, \sqrt{\frac14}\).
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
alright. 6,5,2
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Check the last one.
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
\(\sqrt x\) is the inverse function for \(x^2\). \(\sqrt x\) is a number that squared must be \(x\). \((\sqrt x )^2=x\). Think about last one.
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
I still think it's1
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Compute \(\sqrt{\frac14}\).
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
\(2^2\neq\frac14\)
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Try again.
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
\(\left(\frac14\right)^2\neq\frac14\). Try again.
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
So I have to square it?
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
You have to find \(\sqrt{\frac14}\) using the definition I wrote above.
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Yes. Thats it. Now back to \(\sqrt{x+4}=5\). Can you solve it?
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
Would I plug something in x?
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Ok. Can you solve this: \(\sqrt x = 2\) ?
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Yes. Thats it. Now back to \(\sqrt{x+4}=5\). Can you solve it?
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
\(\sqrt{25+4}\neq5\)
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Bingo. You solved this by your own. Congratulations!
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
It has to be that's why thought of 25 =5
 one year ago

jackoo Group TitleBest ResponseYou've already chosen the best response.0
Thank you:)!!
 one year ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
You are welcome.
 one year 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.