Answer:
x=3 meters
Step-by-step explanation:
step 1
Find the area of the rectangular pool
we have
substitute
step 2
Find the area of rectangular pool including the area of the walkway
Let
x ----> the width of the walkway
we have
substitute
step 3
Find the area of the walkway
To find out the area of the walkway subtract the area of the pool from the area of rectangular pool including the area of the walkway
so
step 4
Find the value of x if the area of the walkway equal the area of the pool
so
Solve for x
Solve the quadratic equation by graphing
The solution is x=3 meters
see the attached figure
Given that,
The given expression is : 
To find,
The value of the above expression when x = 2 and y = 4
Solution,
We have,
Put x = 2 and y = 4 in the above expression.
So, the value of the above expression is 18.
Answer:
An null hypothesis is one that states there is no statistically significant relationship between two variables or a position that states something is not happening
An alternative hypothesis is one that states there is a statistically significant relationship between two variables or a position that states something is happening.
(a)
μ = 3800
μ > 3800
(b)
μ = 3800
μ < 3800
Y=mx+b *thats the equation for graphs like that*
