Answer:
Step-by-step explanation:
We use the quadratic formula here which says for a quadratic equation 
.
Now in our case
so we have:
Which are our solutions.
It is B because an equilateral triangle has all 3 sides that are equal
To find the slope of a line, use this formula:
m = (y2-y1)/(x2-x1) where m is the slope, and (x1, y1) and (x2, y2) are points.
If I plug points P and Q into the slope formula, we get:
(1-5)/(-2+8) = -4/6 = -2/3
The slope is -2/3
Answer:
L = a √( 4 + 2√2)
Step-by-step explanation:
L = a √( 4 + 2√2) is the equation which can be used to calculate the length of each side of the octagon. In the equation i.e. L = a √( 4 + 2√2), in which ''a'' is the length of each side of the octagon. So by putting of ''a'' we get the length of each side of the octagon. The octagon is regular means all of its sides and angles are congruent or similar to each other. Each angle in the octagon has a measure of 135 degrees.
