Respuesta :
The correct equation is: 0.1x-16
As to find out the perimeter, you need to add all sides of the triangle together:
(0.5x+9) + 3x + (-3.4-25)
then group the variables together:
(0.5x+3x-3.4) + (9-25)
0.1x - 16
As to find out the perimeter, you need to add all sides of the triangle together:
(0.5x+9) + 3x + (-3.4-25)
then group the variables together:
(0.5x+3x-3.4) + (9-25)
0.1x - 16
Answer:
The correct option is 3.
Step-by-step explanation:
It is given that the length of sides of a triangle are 0.5x+9, 3x, and -3.4x-25.
Let a=0.5x+9, b=3x, and c=-3.4x-25.
Perimeter of a triangle is the sum of length of all three sides.
[tex]Perimeter=a+b+c[/tex]
Substitute a=0.5x+9, b=3x, and c=-3.4x-25 in the above equation.
[tex]Perimeter=(0.5x+9)+(3x)+(-3.4x-25)[/tex]
On simplification, we get
[tex]Perimeter=0.5x+9+3x-3.4x-25[/tex]
Combine like terms.
[tex]Perimeter=(0.5x+3x-3.4x)+(9-25)[/tex]
[tex]Perimeter=(0.1x)+(-16)[/tex]
[tex]Perimeter=0.1x-16[/tex]
Perimeter of the triangle is 0.1x-16. Therefore the correct option is 3.
