Answer:
y=x+5
Step-by-step explanation:
Lines are parallel if they have the same slope, the Y-intercept does not matter. Since these line passes through point (0,5) it's y-intercept has to be 5 and It's still parallel with line y=x-7.
An outside angle is equal to the sum of the two opposite inside angles.
Set up the equation to get:
6x = (x+40) + (3x+10)
Simplify the right side:
6x = 4x + 50
Subtract 4x from both sides:
2x = 50
Divide both sides by 2:
x = 50/2
x = 25
Now you have X you can solve for each angle:
6x = 6*25 = 150
(x+40) = 25 + 40 = 65
(3x +10) = 3(25) +10 = 75 + 10 = 85
I = -425x^2 + 45,500(x) - 650,000
x = 40
I = -425(40^2) + 45,500(40) - 650,000
I = -425(1600) + 1,820,000 - 650,000
I = -680,000 + 1,820,000 - 650,000
I = 1,820,000 - 1,330,000
I = 490,000 <===
Please provide more information. You need to add the sides of the polygon to find the perimeter.