Cobalt-60 is used in the treatment of cancer. a sample contains 8 grams of co-60 wbere k=0.1308

This is so hard and it’s for a test

Find cot x if sin x cot x csc x = √2

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample