What is the sum of the interior angles of the polygon shown below?

1080

Step-by-step explanation:

This is an octagon, so 1080 is the interior angle sum

Sum of angles = (n - 2)180⁰

Here sides are 8

Thus sum = (8 - 2)180⁰

Sum = 6 × 180⁰ = 1080⁰

73.0769230769% of the games were won

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.