A60-watt light bulb uses 60 watt hours of electricity in 1 hour. suppose everyone in the united states lef one unneeded 60 watt light bulb on for one hour everyday for a year.

electricity is billed in kilowatt hours. so 60 watt hours is equal to sixty divided by one thousand. express the electricity used by a 60 watt light bulb in one hour in kilowatt hours in scientific notation.

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i

Jack is considering a list of features and fees for current bank: jack plans on using network atms about 4 times per month. what would be jack’s total estimated annual fees for a checking account with direct paycheck deposit, one overdraft per year, and no 2nd copies of statements? a. $44 b. $104 c. $144 d. $176