Answer:
lets goooo
-4×2+3x=-2
you multiply -4 by 2 as shown in the question
so -4×2+3x=-2
-8+3x=-2
3x = -2+8
3x =6
you divide both sides by the x variable
3x =6
3x/3=6/3
x=3
Using the binomial distribution, it is found that there is a 0.0328 = 3.28% probability that at least 2 of them choose the same quote.
<h3>What is the binomial distribution formula?</h3>
The formula is:


The parameters are:
- x is the number of successes.
- n is the number of trials.
- p is the probability of a success on a single trial.
In this problem, we have that:
- There are 6 students, hence n = 6.
- There are 20 quotes, hence the probability of each being chosen is p = 1/20 = 0.05.
The probability of one quote being chosen at least two times is given by:

In which:
P(X < 2) = P(X = 0) + P(X = 1).
Then:



Then:
P(X < 2) = P(X = 0) + P(X = 1) = 0.7351 + 0.2321 = 0.9672.

0.0328 = 3.28% probability that at least 2 of them choose the same quote.
More can be learned about the binomial distribution at brainly.com/question/24863377
Circumference is given by
C=2πr
From the information:
r=20 in
thus
C=2×π×20
C=40π inches