The product of the matrices A and B and interpret the result given that the matrix A represents the number of gallons of regular, plus and premium gasoline sold during the week and matrix B represents the selling price and profit for 1 gal of each type of gasoline.
The product of the matrices A and B and interpret the result given that the matrix A represents the number of gallons of regular, plus and premium gasoline sold during the week and matrix B represents the selling price and profit for 1 gal of each type of gasoline.
Solution Summary: The author calculates the product of the matrices AandB. The first column represents the total revenue for weekdays and weekends, respectively.
To calculate: The product of the matrices A and B and interpret the result given that the matrix A represents the number of gallons of regular, plus and premium gasoline sold during the week and matrix B represents the selling price and profit for 1 gal of each type of gasoline.
(b)
To determine
The profit for the weekend given that the matrix A represents the number of gallons of regular, plus and premium gasoline sold during the week and matrix B represents the selling price and profit for 1 gal of each type of gasoline.
(c)
To determine
The revenue for the entire week given that the matrix A represents the number of gallons of regular, plus and premium gasoline sold during the week and matrix B represents the selling price and profit for 1 gal of each type of gasoline.
Find a unit normal vector to the surface f(x, y, z) = 0 at the point P(-3,4, -32) for the function
f(x, y, z) = In
-4x
-5y-
Please write your answer as a vector (a, b, c) with a negative z component, and show your answer accurate
to 4 decimal places
Find the differential of the function f(x, y) = 2x² - 2xy – 5y² at the point (-6, -5) using Ax = 0.3
and Ay = 0.05.
dz =
Now find Az and compare it to your answer above
Ax=
Hint: If entering a decimal, round to at least 5 places
Find the differential of the function f(x, y) = −8x√y at the point (1,3) using Ax = 0.25 and
Ay = -0.15.
dz
Now find Az and compare it to your answer above
Az =
Hint: If entering a decimal, round to at least 5 places
Elementary Statistics: Picturing the World (7th Edition)
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