In △ABC, m∠ACB=90°, m∠ACD=30°, CD is the altitude to AB , and AC = 8 cm. Find BD. (A) 4cm (B) 6cm (C) 8cm (D) 12cm

Abag of jelly beans contain 13 pink, green, 20 yellow, 10 black, 7 red, and 11 orange jelly beans. approximately what percent of the jelly beans are pink and yellow?

According to the data set, where should the upper quartile line of the box plot be placed?

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