Suppose cluster sampling were being used to survey users of a particular social networking site. 28% of the entire population of the United States uses this site. Based on the table below, which city would be considered the best cluster to use for this survey? Denver 16% Honolulu 9% Miami 46% Philadelphia 27% A. Philadelphia B. Honolulu C. Miami D. Denver

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?

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