Register
The perimeter of a triangle is 7a - 11b. If two of its sides are 2a + b and a - 9b, what is the third side?
159k views
0 votes
The perimeter of a triangle is 7a - 11b. If two of its sides are 2a + b and a - 9b, what is the third side?

User Vladyslav Panchenko
by
6.5k points

2 Answers

1 vote

Answer:

4a-3b

Explanation:

This is 100% correct!!

Hope this Helps :)

User GiantDuck
by
6.5k points
4 votes
P = 7a -11b

side _1 = 2a +b
side_2 = a -9b

side_3 = P -(side_1 +side_2)

side_3 = 7a -11b -(2a +b +a -9b) = 7a -11b -(3a -8b)

side_3 = 7a -11b -3a +8b = 4a -3b

side_3 = 4a -3b

hope helped
User Hudon
by
7.1k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.4m questions

9.9m answers

Other Questions

Write words to match the expression. 24- ( 6+3)
Please solve the following equation. x-6x=56
whats the most accurate estimation of 65+77
Find the additive inverse of 18/23
What is 25% of 500.00
Link Copied!