An oil company is drilling for oil at three sites. according to geological tests, the probabilities of

finding oil the sites is at these three sites are 0.30, 0.15, and 0.20, respectively. the presence of oil at any one of presumed to be independent of the presence of oil at any of the other sites.

what is the probability of finding oil at all three of the sites?
what is the probability of not finding oil at any of the sites?
what event would be the complement of finding oil at all three sites? what event would be the complement of not finding oil at any of the sites?

Will give brainliest plz hurry lexie surveyed 4 teenagers to find out approximately how many hours, per week, they read for fun, and how many siblings they have. brooke said she reads about 10 h a week for fun, and that she has 5 siblings. celia said she has 1 brother and 1 sister and reads for fun about 3 h each week. henry said he has 2 brothers and reads for fun about 30 min each week. jude said he doesn't read for fun and has 3 brothers and 3 sisters. use this information to complete the data table. express your answers as whole numbers or decimals. name hours of fun number of siblings brooke celia __ henry jude

How can you construct perpendicular lines and prove theorems about perpendicular lines

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle