The other possibilities include that she chooses at least one book that is not a mystery; this means the complement is not choosing all mysteries.
<h3>What is the probability?</h3>
Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.
The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.
P(E) = Number of favorable outcomes / total number of outcomes
Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels.
The complement of an event is the remaining possibilities.
Our event is Mariah choosing 3 mysteries.
The other possibilities include that she chooses at least one book that is not a mystery; this means the complement is not choosing all mysteries.
Learn more about probability here;
brainly.com/question/11234923
Either 20 or 16
sorry its one of those
Answer: 326 minutes
explanation: 66.62 (bill) - 27.50 (monthly fee) = 39.12
39.12 is now the total of the charges for every minute he was on his phone. so we divide that number by the fee of .12 to find how many minutes he was on the phone, 326 minutes.
We know that y =-2x.
To find the value of x when y = -16, we simply plug -16 in for y in our equation.
y = -2x
-16 = -2x Divide both sides by -2, to get x all by itself
8 = x
Answer is A