Answer:
0.2700
Step-by-step explanation:
-Notice that this is a binomial distribution with p=0.52, n=4 and x=3.
-The formula for the binomial probabilities is given as:

The probability than in 4, exactly 3 order their food on the go is:

Hence, the probability that exactly 3 order their food on the go is 0.2700
The mean is 85.2
Explanation:
Add all the numbers together
98+78+84+75+91=426
Divide the sum by the amount of numbers you added together
426/5= 85.2
Answer:
C. 
Step-by-step explanation:
We need to determine whether the given polynomial
can be factored into perfect squares. If so, factor the polynomial. Otherwise, select that it cannot be factored into a perfect square.









Hence final answe is choic C. 
Answer:
-11, -5, -23, 7
Step-by-step explanation:
plug in the h value into equation
-2(2)-7
-11
-2(-1)-7
-5
-2(8)-7
-23
-2(-7)-7
7