Answer:

Step-by-step explanation:
First we need to set up an equation in order to find the value of x. We know that the sum of these angles are 180°

Now we can plug in our value for x into each of the angle's equations

Answer:
Distribution is NOT binomial.
Step-by-step explanation:
In order to be a binomial distribution, the probability of success for each individual trial must be the same. Since each marksman hits the target with probability Pi, the probability of success (hitting the target) is not necessarily equal for all trials. Therefore, the distribution is not binomial.
In this case, the distribution would only be binomial if Pi was the same for every "ith" marksman.
3x+2=14
-2 -2
3x=12
/3 /3
X=4