Answer: A three-sided polygon is a triangle.
There are several different types of triangle (see diagram), including: Equilateral – all the sides are equal lengths, and all the internal angles are 60°. Isosceles – has two equal sides, with the third one a different length.
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
8(19-17)=8(2)=16
Answer:
B and C
Step-by-step explanation:
BRAINLIEST PLEASE
Answer:
B
Step-by-step explanation:
Converting it to z, we can use the formula of z-score:
z-score = 
Where
x is the value we are checking for (here, x = 79)
is the mean, which is 85
is the standard deviation, which is 4 now
<em>Let's plug the information into the formula and solve for the answer:</em>
<em>
</em>
<em />
<em>B is the correct answer.</em>