This diagram shows how 2/7 = 8/28 by showing that you can color in more squares or duplicate that amount of squares 4 times in order to get 8/28. (Since 2/7 x 4/4 = 8/28.)
Answer:
D. 3.5
Step-by-step explanation:
28 divided by 8 = 3.5
Answer:

Possible values of x: Any from 0 to 5.






Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinations of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
In this question:

So

Possible values of x: 5 trials, so any value from 0 to 5.
For each value of x calculate p(☓ =x)







to factor it the answer is (x+1)(x+1)
to simplify it the answer is x2+2x+1
idk if this helped or not but here you go