Answer:
B and C
Step-by-step explanation:
they have -5x, it doesn't really matter on their order
Answer:
7 of the angles measure 144 degrees each and one angle measures 72 degrees
Step-by-step explanation:
Let
x -----> represent the measures of the seven same-size angles,
x/2 ----> represent the measure of the one that is "two times smaller."
we know that
The sum of internal angles of a polygon can be calculated as:

where
n is the number of sides of the polygon
In this case
n=8 (octagon)
substitute

so
The linear equation that represent this problem is

solve for x

so

therefore
7 of the angles measure 144 degrees each and one angle measures 72 degrees
The way you have it is correct because root 2 is roughly 1.4 pi approximately is 3.4 and 4.5 is a rational number
Answer:
10*4-6*2=28
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
29+8+90=127
180-127=53
23.95
or 24
Give brainliest pls