Answer:
Probability of getting at least 9 out of 18 correctly is 0.0043
Step-by-step explanation:
We have
n = 18
p = 1/5 for correct answer
q = 4/5 for wrong answer
P( 9
X
18) = 1 - P(0
X
8)
= 1 - 0.9957
=0.0043
For this equation, all are subtraction symbols which means you don't need to care about the parenthesis as they do nothing.
Basically, it's the associative property because the parenthesis do nothing to the equation and both sides stay the same
Answer:
47 degrees
Step-by-step explanation:
i am super smart
Answer:
perimeter=126 units
Step-by-step explanation:
Yes, I can help you.
A nonagon is a 9 sided regular polygon.
The perimeter is the distance around the edges of the nonagon.
If the sides measure 14 units, then the perimeter is
![p erimeter = 14 + 14 + 14 + 14 + 14 + 14 + 14 + 14 + 14 \\ \implies \: perimeter = 9 \times 14 \\ perimeter = 126 \: units](https://tex.z-dn.net/?f=p%20erimeter%20%3D%2014%20%2B%2014%20%2B%2014%20%2B%2014%20%2B%2014%20%2B%2014%20%2B%2014%20%2B%2014%20%2B%2014%20%5C%5C%20%20%5Cimplies%20%5C%3A%20perimeter%20%3D%209%20%5Ctimes%2014%20%5C%5C%20perimeter%20%3D%20126%20%5C%3A%20units)