A community for students.
Here's the question you clicked on:
 0 viewing
jackoo
 2 years ago
Hey, please help:)
jackoo
 2 years ago
Hey, please help:)

This Question is Closed

klimenkov
 2 years ago
Best ResponseYou've already chosen the best response.1Hint:\[\sqrt[3]{24}=\sqrt[3]{8\cdot3}=\sqrt[3]8\cdot\sqrt[3]{3}\]

klimenkov
 2 years ago
Best ResponseYou've already chosen the best response.1Can you write the answer?

jackoo
 2 years ago
Best ResponseYou've already chosen the best response.0Could you help me with another question?

klimenkov
 2 years ago
Best ResponseYou've already chosen the best response.1Solve for \(\sqrt{x+4}\).

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

klimenkov
 2 years ago
Best ResponseYou've already chosen the best response.1Can you solve \(3y2=13\) ?

klimenkov
 2 years ago
Best ResponseYou've already chosen the best response.1Yes. Think if \(y=\sqrt{x+4}\).

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

klimenkov
 2 years ago
Best ResponseYou've already chosen the best response.1What does square root means?

jackoo
 2 years ago
Best ResponseYou've already chosen the best response.0a number multiplied by itself?

klimenkov
 2 years ago
Best ResponseYou've already chosen the best response.1Can you tell me what does \(\sqrt{16}\) mean?

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

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

klimenkov
 2 years ago
Best 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.

klimenkov
 2 years ago
Best ResponseYou've already chosen the best response.1Compute \(\sqrt{\frac14}\).

klimenkov
 2 years ago
Best ResponseYou've already chosen the best response.1\(\left(\frac14\right)^2\neq\frac14\). Try again.

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

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

jackoo
 2 years ago
Best ResponseYou've already chosen the best response.0Would I plug something in x?

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

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

klimenkov
 2 years ago
Best ResponseYou've already chosen the best response.1Bingo. You solved this by your own. Congratulations!

jackoo
 2 years ago
Best ResponseYou've already chosen the best response.0It has to be that's why thought of 25 =5
Ask your own question
Sign UpFind more explanations on OpenStudy
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.