Half a number plus 2 is the same as the 2 times the number minus 4

The parabola opens: y=√x-4 (principal square root) up down right left

Adozen bananas weigh 3 pounds how many ounces does 1 banana weigh

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