Whitne bought 10 bagels for brunch last Sunday. 8 of the bagels had raisins. What fraction of the bagels had raisins?

Find cot x if sin x cot x csc x = √2

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

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?