Jeff had 20 friends but lost 2 of them, then get 7 more. what is the squareroot of his number of current friends

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

Four quarts of a latex enamel paint will cover about 200 square feet of wall surface. how many quarts are needed to cover 98 square feet of kitchen wall and 52 square feet of bathroom wall

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319