Factor y2 – 5y – 1y + 5 by grouping.

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

Find the area of the trapezoid a. 150 ft^2 b. 300 ft^2 c. 45 ft^2 d. 75 ft^2

The formula h=7d gives the relationship between the age d (in years ) of a dog and the equivalent age h in human years. anne figures that her welsh corgi baxter is the equivalent of 49 human years old what is baxter actual age