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Yadraewepetere
Yadraewepetere Yadraewepetere
  • 31-07-2016
  • Mathematics
Answered

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

Verified Answer :

jhonyy9
jhonyy9 jhonyy9
  • 07-08-2016

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

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proctorcameron0805
proctorcameron0805 proctorcameron0805
  • 10-11-2021

Answer:

4a-3b

Step-by-step explanation:

This is 100% correct!!

Hope this Helps :)

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