Answer:
x^2-2x-8
Step-by-step explanation:
-4, 2
(x-4)(x+2) solve that, and it equals to that equation.
Since you're looking for the chance that the defective player occurs twice, you need to find the chance your friend receives a defective player given that you also receive one. The chance you receive a defective player is 4%, or 0.04. If you friend also receives a defective player, then the chance of both occurring is 4% of 4%, or 0.04 * 0.04, which equals 0.0016. So the probability that you can a friend both receive a defective player is 0.16%.
Answer:
x = 1 is correct !
Step-by-step explanation:
Using it's concept, it is found that the probability that the selected student is wearing a black shirt is given by:

<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
In this problem, we have that out of n + 6 + 9 = n + 15 students, n are wearing black shirts, hence the probability is given by:

More can be learned about probabilities at brainly.com/question/14398287
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I answered it in a table as seen above, place the amount in terms of X and then work out what X is equal to