A community for students.
Here's the question you clicked on:
 0 viewing
Bananas1234
 one year ago
quare root of 63/25
Bananas1234
 one year ago
quare root of 63/25

This Question is Closed

johnweldon1993
 one year ago
Best ResponseYou've already chosen the best response.2\[\large \sqrt{\frac{63}{25}}\] So we can rewrite this as \[\large \frac{\sqrt{63}}{\sqrt{25}}\] right? now, what is the square root of 25?

johnweldon1993
 one year ago
Best ResponseYou've already chosen the best response.2Right...so lets write this as \[\large \frac{\sqrt{63}}{5}\] good so far?

johnweldon1993
 one year ago
Best ResponseYou've already chosen the best response.2Now...we know that we cant simply say 63 is the square of some number...so we need to think of something else we can do Hint* what are the factors of 63?

johnweldon1993
 one year ago
Best ResponseYou've already chosen the best response.2And now which of those numbers is a perfect square?

Bananas1234
 one year ago
Best ResponseYou've already chosen the best response.01and 9 is that it?

johnweldon1993
 one year ago
Best ResponseYou've already chosen the best response.2Not quite...now that we know 9 is a perfect square...what times 9 = 63...well 7 right? So we can write 63 as 9 times 7 right? \[\large \frac{\sqrt{63}}{5} = \frac{\sqrt{9\times 7}}{5}\] And since we know the square root of 9 = 3...we have \[\large \frac{3\sqrt{7}}{5}\]
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.