Anthony is building a rectangular-shaped swimming pool with a perimeter of 80 feet. Part A
Determine a function, A(w), that models the area of the top surface of the swimming pool in terms of the width, w.
A(w)= ? for w > 0

Part B
Determine the maximum area of the top surface of the pool.
The maximum area of the top surface of the pool ? is square feet.​

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables