Two times eight times one fourth to the second power

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

Which statement describes the slope of the line?

1. suppose that scores on a knowledge test are normally distributed with a mean of 71 and a standard deviation of 6. a. label the curve: show the mean and the value at each standard deviation: b. if angelica scored a 76 on the test, what is her z-score? (draw her score on the curve above and label) c. what percent of students did angelica score higher than? how can you tell? d. if 185 students took the test, how many students scored higher than angelica?