Mathematics, 07.12.2021 06:10 Mlmyers81
A power plant has 4 tons of coal. A ton produces 2,460 kilowatt hours of electricity. The Plant reserves enough electricity to power nine light bulbs for a year. How many additional kilowatt hours of electricity are produced? (876 kilowatt of electricity to power a 100-watt light bulb a year)
Answers: 3
Mathematics, 21.06.2019 18:20
The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%
Answers: 1
Mathematics, 21.06.2019 18:30
The school that imani goes to is selling tickets to the annual dance competition. on the first day of the ticket sales the school sold 7 adult tickets and 5 child tickets for a total of $96. the school took in $40 on the second day by seling 3 adult tickets . find the price of an adult ticket and the price of a child ticket. solve by using substitution elimination college prep algebra math heres the 2 equations i came up with 7x+5y=96 and 3x+2y= -40 show all workiv be stuck on this.
Answers: 1
Mathematics, 21.06.2019 21:40
Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0
Answers: 1
Mathematics, 22.06.2019 00:30
Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great
Answers: 1
A power plant has 4 tons of coal. A ton produces 2,460 kilowatt hours of electricity. The Plant rese...
Mathematics, 25.04.2020 21:56
Mathematics, 25.04.2020 21:56
History, 25.04.2020 21:56
Mathematics, 25.04.2020 21:56
Mathematics, 25.04.2020 21:56
Mathematics, 25.04.2020 21:56
Mathematics, 25.04.2020 21:56
Physics, 25.04.2020 21:56
Mathematics, 25.04.2020 21:56
History, 25.04.2020 21:57
Mathematics, 25.04.2020 21:57
Mathematics, 25.04.2020 21:57
Mathematics, 25.04.2020 21:57