Function a is linear, the equation is y = 5/3x or y=5/3x+0
-8x+5y= -40
First, add 8x to both sides
5y= 8x-40
Now divide both sides by 5
y= 8/5x-8
Answer:

Step-by-step explanation:
From the question we are told that:
Sample 1 
Sample 1 mean blood pressure 
Sample 1 variance 
Sample 2 
Sample 2 mean blood pressure 
Sample 2 variance 
Generally the equation for the test of statistic is mathematically given by



therefore the samples test for comparing the two population means

Answer:
14.4% decrease
Step-by-step explanation:
Here is the formula for finding the percentage of decrease:
(starting value - final value) / starting value * 100.
So for your question,
/
There was a 14.4% decrease within 50 years.
The area of a square is one of the sides squared s^2