Company ABC earns a weekly profit of Pete dollars according to the equation P equals -.5 X squared +40 X -300 where they sell X items each week determine how many items they need to sell each week to maximize the profit

Two parallel lines are crossed by a transversal. what is the value of x? x = 40 x = 70 x = 110 x = 130

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

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