Answer:
x = -4
Step-by-step explanation:
Write and solve an equation in which the slope from the definition of slope is on the left side and the given slope, 4/7, is on the right side:
7 - 5 4
m = ---------- = --------
3 - x 7
Simplifying with the aim to find the value of x:
2(7) = 4(3 - x), or 7 = 3 - x. Then x = -4.
Answer:
5x-5-3-1=-12
5x-9=-12
5x=-12+9
5x=-3
x=-3/5
Step-by-step explanation:
the sum of all interior angles in a polygon is
180( n - 2)
n = number of sides
now, this polygon is a quadrilateral, so it has 4 sides, so it's total is just 180( 4 - 2) = 360.

Answer:
B. 4,1
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
When looking for the perimeter just add all the numbers together.