Southern oil company produces two grades of gasoline: regular and premium. the profit contributions are $0.30 per gallon for regular gasoline and $0.50 per gallon for premium gasoline. each gallon of regular gasoline contains 0.3 gallons of grade a crude oil and each gallon of premium gasoline contains 0.6 gallons of grade a crude oil. for the next production period, southern has 18,000 gallons of grade a crude oil available. the refinery used to produce the gasolines has a production capacity of 50,000 gallons for the next production period. southern oil's distributors have indicated that demand for the premium gasoline for the next production period will be at most 20,000 gallons. a. formulate a linear programming model that can be used to determine the number of gallons of regular gasoline and the number of gallons of premium gasoline that should be produced in order to maximize total profit contribution. b. what is the optimal solution? c. what are the values and interpretations of the slack variables? d. what are the binding constraints?

answer: 19 is   2

step-by-step explanation: i just looked at your answer and wrote it down

at first, in 1635, the evening meetings had been just for women . .

what relationship between ideas is shown in the text above?

question 1 options:

location of events

similarity of events

timing of events

examples of an idea

step-by-step explanation:

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;