A triangle has sides 2x – 5, 3x + 1, and 4x + 2. Find the polynomial that represents its perimeter.
2006-11-21 14:02:44 · 5 answers · asked by jazminda S 1 in Science & Mathematics ➔ Mathematics
just add the sides -- that is the definition of a perimeter
2x - 5 + 3x + 1 + 4x +2
= 9x - 2
hope this helps !!!
2006-11-21 14:09:21 · answer #1 · answered by ilovemath_pi 2 · 0⤊ 1⤋
The perimeter of a triangle equals the sum of all its sides.
The triangle has sides 2x – 5, 3x + 1, and 4x + 2
Therefore, the perimeter equals:
2x - 5 + 3x + 1 + 4x + 2
= 9x - 2 (simplified)
2006-11-21 14:15:06 · answer #2 · answered by Akilesh - Internet Undertaker 7 · 1⤊ 1⤋
perimeter = sum of all sides, so...
(2x - 5) + (3x + 1) + (4x +2)
= 2x - 5 + 3x +1 + 4x + 2
= 2x + 3x + 4x - 5 + 1 + 2
= (2x + 3x + 4x) + (- 5 + 1 + 2)
= 9x + (-2)
= 9x - 2
9x - 2 is the answer
2006-11-21 14:11:51 · answer #3 · answered by spogdar 1 · 1⤊ 0⤋
Add 2x-5, 3x+1 and 4x+2 which equals 9x-2
2006-11-21 14:21:38 · answer #4 · answered by lulu 3 · 0⤊ 1⤋
9x-2
2006-11-21 14:08:36 · answer #5 · answered by Anonymous · 0⤊ 1⤋