The price of a movie ticket in a given year can be modeled by the regression equation y = 6.94(1.02x), where y is the ticket pri
2 answers:
Answer:
11.38.
Step-by-step explanation:
Given :The price of a movie ticket in a given year can be modeled by the regression equation , where y is the ticket price and x is the year.
To Find: . To the nearest cent, which is the best prediction of the price of a ticket in year 25?
Solution:
Where y is the ticket price and x is the year.
Now we are supposed to find which is the best prediction of the price of a ticket in year 25
Substitute x = 25 in the given equation.
Thus the best prediction of the price of a ticket in year 25 is 11.38.
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Given
To obtain the minimum value of y, we first take the derivative of y
The derivative of y is:
Equating
gives the minimum value we require.
Doing that, we have:
So that
Therefore, the minimum value is x = 3
Answer:
The Greatest possible value of one of the integer is 140.
Step-by-step explanation:
Given: The average (arithmetic mean) of five different positive integers is 30.
To find: What is the greatest possible value of one of these integers?
Explanation: we are given that the arithmetic mean of five positive integer
is 30.
Let the five positive integers are A,B,C,D,E
The arithmetic mean :
=30.
On multiplying both side by 5.
A+B+C+D+E =150.
The least values of A ,B,C and D can be 1 ,2,3,4.
Then : 1 +2+3+4+E =150
On simplification 10+E =150
On subtraction both side by 10 we get
E = 140 .
Therefore, the Greatest possible value of one of the integer is 140.