SOLUTION: Geometry. A triangle has sides 3x + 7, 4x - 9, and 5x + 6. Find the polynomial that represents its perimeter.
Can someone please give me some help. I am totally lost.
Than
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Question 27471: Geometry. A triangle has sides 3x + 7, 4x - 9, and 5x + 6. Find the polynomial that represents its perimeter.
Can someone please give me some help. I am totally lost.
Thank you very much.
Answer by Z(8) (Show Source): You can put this solution on YOUR website!
If the sides of your triangle were 3,4, and 5, you would find the perimeter (the distance around the outside) by adding 3+4+5=12. You do the same for this problem.
3x + 7
4x - 9
+ 5x + 6
-------------
12x + 4
(Since all the x's are positive, you just add them together to get 12x and then since the 9 is negative, you add the 6 and 7, and then subtract 9 to get 4)
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