Answer:
12
Step-by-step explanation:
They are the same angle so they must be equal.
So, x+5 = 2x-7
5+7 = 2x-x
12 = x
Answer:
Step-by-step explanation:
Delia's score X 5 = 65
d X 5 = 65
5d=65
Answer:
Congrats
Step-by-step explanation:
What are you asking?
Answer:
This means that there were 45 total problems.
Step-by-step explanation:
To find the total number of problems, add all of the different categories together.
Total = Himself + With Sal + Left
Total = 23 + 13 + 9
Total = 45
Using the binomial distribution, there is a 0.9983 = 99.83% probability that at most eleven of the thirteen babies are girls.
<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.
For this problem, the values of the parameters are:
p = 0.5, n = 13
The probability that at most eleven of the thirteen babies are girls is:

In which
P(X > 11) = P(X = 12) + P(X = 13)
Then:



So:
P(X > 11) = P(X = 12) + P(X = 13) = 0.0016 + 0.0001 = 0.0017

0.9983 = 99.83% probability that at most eleven of the thirteen babies are girls.
More can be learned about the binomial distribution at brainly.com/question/24863377
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