Mathematics, 29.10.2019 23:31 kholman
Agas station earns $2.60 in revenue for each gallon of regular gas it sells, $2.75 for each gallon of midgrade gas, and $2.90 for each gallon of premium gas. let x1, x2, and x3 denote the numbers of gallons of regular, midgrade, and premium gasoline sold in a day. assume that x1, x2, and x3 have means μ1 = 1500, μ2 = 500, and μ3 = 300, and standard deviations σ1 = 180, σ2 = 90, and σ3 = 40, respectively. a. find the mean daily revenue. b. assuming x1, x2, and x3 to be independent, find the standard deviation of the daily revenue.
Answers: 3
Mathematics, 21.06.2019 16:20
Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?
Answers: 1
Mathematics, 21.06.2019 20:30
Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how
Answers: 2
Mathematics, 21.06.2019 21:00
From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day
Answers: 1
Mathematics, 21.06.2019 21:10
See attachment below and find the equivalent of tan(∠qsr)
Answers: 3
Agas station earns $2.60 in revenue for each gallon of regular gas it sells, $2.75 for each gallon o...
Mathematics, 18.03.2021 01:00
Mathematics, 18.03.2021 01:00
Mathematics, 18.03.2021 01:00
Mathematics, 18.03.2021 01:00
History, 18.03.2021 01:00
Mathematics, 18.03.2021 01:00
Mathematics, 18.03.2021 01:00