Have you ever taken a blade to that beautiful body of yours, skipped a meal at least once on purpose, cried yourself to sleep because "weren't good enough," tried any form of self harm, thought or attempted to take your own life?

If tana tanb=k, show that(1+k)cos(a+b)=(1-k)cos(a-b)

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.