Answer:
30√11
Step-by-step explanation:
The answer for this would be 4n-20 or n-5
The correct answer is D) y + 1 = 4/3(x - 9)
In order to find this, simply take the point and the slope and plug into the base form of point-slope form.
y - y1 = m(x - x1)
Use the slope for m and the point for (x1, y1)
y + 1 = 4/3(x - 9)
The sum of all the angles in a pentagon is 540 degrees.
To solve for x, you must add up all the known angles and then subtract from 540.
So, you. Would do, 540-(100+100+90+120)
That equals 540-510 which is 30.
Your final answer is x=30
Hope it helps!!