A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
The hypotenuse of a right triangle is 15ft long. One leg is 3ft shorter than the other. Find the lengths of the legs.
Please someone help me work through this
anonymous
 5 years ago
The hypotenuse of a right triangle is 15ft long. One leg is 3ft shorter than the other. Find the lengths of the legs. Please someone help me work through this

This Question is Closed

angela210793
 5 years ago
Best ResponseYou've already chosen the best response.015^2=x^2+x^26x+9 15^2=2x^26x+9

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how do i do this amistre64

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1well ..... we use the pythag thrm which states: hyp^2 = leg^2 + other leg^2 15^2 = l^2 + (l3)^2 from the problem stated agree?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i got x=9 x=12 so since there r no  then answer should be 9, 12 right

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1225 = l^2 + l^2 6l +9 ; go for broke... 0 = 2l^2 6l  216 agree?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1factor out the common 2 0 = l^2 3l 108 ; solve for zeros

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1what is your favorite way to get the zeros of this quadratic?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1how do we factor this quadratic?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1we can complete the square if you like

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1or we can use the quadratic formula..

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0we can use 0=x^231x108

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0divide both sides by 31

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1let me clean this up for you; l looks like '1' but its a letter L 0 = x^2 3x 108 ; try that :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0divide both sides by 3

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1108+_____ = x^2 3x +_____ ; complete the square 108 +9/4 = (x(3/2))^2 ; sqrt side + sqrt(441/4) = x(3/2) ; +3/2 x = 3/2 + 21/2

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1x = 24/2 = 12 or x = 18/2 = 9; lets assume its 9 = 9 try them out does: 15^2 = 12^2 + 9^2 ??

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1then we found our answers :) You just have to be more efficient at the quads ... and that takes alot of practice ;)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok so the answers are 12, 9

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1if leg = 12; the other leg = (123) = 9
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.