Answer:
a. yˆ=38,000+2500x
d. yˆ=38,000−1500x
Step-by-step explanation:
The least squares regression line for the population change of a small country has the following format:
In which a is the initial population and b is the number of habitants for which the population increases/decreases a year.
Let's see each case
a. yˆ=38,000+2500x
The population starts at 38000 and increases by 2500 a year. This is a feasible assumption.
b. yˆ=38,000−3500x
The population starts at 38000 and increases by 3500 a year. By the year 2015, the population will be negative. This is not a feasible assumption.
c. yˆ=−38,000+2500x
The population cannot start at a negative value. So this is not a feasible assumption.
d. yˆ=38,000−1500x
The population starts at 38000 and decreases by 1500 a year. This is a feasible assumption.
Answer:
21
Step-by-step explanation:
25-4=21
All of the questions are 25, he hasn't answered 4, so fron 25 you remove 4, and the answer is 21.
Answer:
So Height of the box is 5.906
Step-by-step explanation:
Given:
Volume of box = 567
Length = 12
Width = 8
To Find:
Height = ?
Solution:
We know that a box is in the shape of a cuboid so
We know that
Volume of the cuboid is given by the formula which is
Volume = Length * Width * Height
Now we are given all the values in the question
putting in those values
Volume = Length * Width * height
Putting the values
567 = 12 * 8 * Height
567 = 96 * Height
Dividing both sides by 96 we get
Height = 567 / 96
So We get
Height = 5.906
So Height of the box is 5.906
Your answer to the question is going to be √37.
The equation to find the answer(once plugged in) is √(-4-2)²+(5-4)²
Have a wonderful night!