A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
Find c if a = 7 and b = 9.
Right triangle with sides a, b, and c. Side c is opposite the right angle.
A. c = 16
B. c = 4
C. c = 3 times the square root of 7
D. c = the square root of130
 2 years ago
Find c if a = 7 and b = 9. Right triangle with sides a, b, and c. Side c is opposite the right angle. A. c = 16 B. c = 4 C. c = 3 times the square root of 7 D. c = the square root of130

This Question is Closed

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Use the pythagoreon theroem!

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Did you? What's up? Let's Math.

somebodys_heartbrake
 2 years ago
Best ResponseYou've already chosen the best response.1um like this A^2 +B^2= C^2

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2You got it. You are given A and B. Let's do it. 7^2 + 9^2 = C^2.

Azteck
 2 years ago
Best ResponseYou've already chosen the best response.1@somebodys_heartbrake that's exactly the same question as the previous one except this one has different values. And now you don't know square roots and squaring which should of been taught in primary/elementary school.

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Sweet whats 49+81?

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Alright so far we know that 130 = C^2. What's C???

AravindG
 2 years ago
Best ResponseYou've already chosen the best response.0@Azteck you are right infact i had replied in previos question and when i saw this i thought my reply got deleted :O .

Azteck
 2 years ago
Best ResponseYou've already chosen the best response.1I think it's a different question, but then it's just using the same format as the previous one.

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Alright so far we know that C^2 = 130. Let's find C. Do you know how to find square roots, or are you a little bit rusty?

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Do you know the square root of say 9? Or do you know nothing about square roots? I don't care either way so just be honest

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2haha alright :) Let's learn some square roots then. I'm not a math teacher but i'll try my best.

somebodys_heartbrake
 2 years ago
Best ResponseYou've already chosen the best response.1ok thanks for helping btw

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2So basically a square root is " What number multiplied by itself will give me this number"

AravindG
 2 years ago
Best ResponseYou've already chosen the best response.0@RandomFriend i appreciate your effort to help the asker get to the answer ..make sure you do not spoonfeed anyone in the process ,happy studying! :)

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2@AravindG Thanks! Happy internet moderating.

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Anyway another way to look at square roots is "What number SQUARED, equals this number?" So lets look at \[\sqrt{4}\] . 2 squared . Aka 2*2 = 4

somebodys_heartbrake
 2 years ago
Best ResponseYou've already chosen the best response.1wouldnt it be 3 to the first 1 u asked

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Yeah exactly. 3*3 = 9. So the square root of 9 is three.

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Alright it works with letters or "variables" too. What's the square root of \[\sqrt{x^2}\] ?

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Nice. X*X = X^2. How about something that applies to us. What is the \[\sqrt{C^2}\]

AravindG
 2 years ago
Best ResponseYou've already chosen the best response.0well done @somebodys_heartbrake and @RandomFriend :)

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Nailed it. So we left off at \[C^2 = 130\]. What happens if we take the square root of both sides?

somebodys_heartbrake
 2 years ago
Best ResponseYou've already chosen the best response.1um not sure

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Write it out for me. Put a square root symbol around both sides.

somebodys_heartbrake
 2 years ago
Best ResponseYou've already chosen the best response.1idk how to do that

AravindG
 2 years ago
Best ResponseYou've already chosen the best response.0......................

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Alright so we are just going to draw a square root sign around both sides. You can do it. I'll do it first. \[\sqrt{C^2} = \sqrt{130}\]

AravindG
 2 years ago
Best ResponseYou've already chosen the best response.0@somebodys_heartbrake please make a thorough reading on this tutorial http://www.mathsisfun.com/squareroot.html

Azteck
 2 years ago
Best ResponseYou've already chosen the best response.1@somebodys_heartbrake wants to know how to write a square root sign like what @RandomFriend did above. I don't think @somebodys_heartbrake knows how to use the equation editor.

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2I dont care if you don't know how to use the equation thing. As long as you get it. Do you see how i got my equation above?

RandomFriend
 2 years ago
Best ResponseYou've already chosen the best response.2Alright I'ma move on. from here \[\sqrt{C^2} = C. \]. This givese us C = sqrt(130). Which was one of our answers I believe.
Ask your own question
Ask a QuestionFind 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.