16. If (2x+3y)< (x+5y) or x < y, then which of the follwong is true? 5k-3
C. x=y (2)
= y
b. x:y = (5k-3):2-k
d. all are correct
a.
(5k-3
2-k
у
2-k

Which of the following contains a variable?

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)

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