A class has 20 students. If the teacher is randomly selecting a group of 3 students to represent the class on the student counci
2 answers:
Answer:
P(Sarah and her two best friends will all be chosen)=1/1140
Step-by-step explanation:
A class has 20 students.
The teacher is randomly selecting a group of 3 students to represent the class on the student council.
The number of ways of choosing 3 students out of 20=
= 1140
we have to find the probability that Sarah and her two best friends will all be chosen.
That means Sarah and her friends are one group to be chosen.
Hence, P(Sarah and her two best friends will all be chosen)=1/1140
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The system of the equations that have the solution of (2, -3) are given below.
3x + 2y = 0 and 3y = 2x - 13
<h3>What is the linear system?</h3>A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more than two variables.
Write a system of equations with the solution (2, -3).
From a single point, an infinite number of lines pass through this point.
Let one line is passing through the origin. Then the equation of the line will be
And the other line is perpendicular to the line which is passing through the origin and a point (2, -3).
Then this line also passes through a point (2, -3). Then the value of c will be
Then the equation of the line will be
3y = 2x -13
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