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Answer:
Let x be a random variable representing the length of a text messaging conversation, then
P(x > 3) = 1 - P(x < 3) = 1 - P(z < (3 - 2)/0.5) = 1 - P(z < 2) = 1 - 0.97725 = 0.02275
An ordered pair of the function is (x, y).
Function:
In math, a set of ordered pairs in which each x-element has Only One y-element associated with it is known as function.
Given,
Here we need to define the ordered pair of the function.
In order to find the order pair of the function, first we have to know the definition of ordered pair,
In math, ordered pair contains the coordinates of one point in the coordinate system.
Where a point is named by its ordered pair of the form of (x, y).
Here the first number corresponds to the x-coordinate and the second to the y-coordinate.
To know more about Function here
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Given:
A video game customers to rent games for $4.75 each.
Customers can also buy a membership for $54 annually, and video games would only cost $2.50 each.
To find:
The number of video games a customer would have to rent in a year in order for the two options to be equal.
Solution:
Let x be the number of video games.
A video game customers to rent games for $4.75 each. So, the total cost is
Customers can also buy a membership for $54 annually, and video games would only cost $2.50 each. So, the total cost is
Now, 
, if the rent in a year for the two options to be equal.
Divide both sides by 2.25.
Therefore, the rent in two options are equal for 24 video games.
