Raymundo is writing an explicit function for the arithmetic sequence: 20, 15, 10,5,...
He comes up with s(n) = 20 - 5n.
What domain should Raymundo use for s so it generates the sequence?
Choose 1
n> 0 where n is an integer
n> 0 where n is any number
n> 1 where n is an integer
n> 1 where n is any number

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

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