The product of A and B that is, A B where, A gives the records of regular, plus and premium gasoline sold during the week (Monday to Friday ) and B gives the selling price and profit for each type of gasoline. For Matrix A : Regular Plus Premium Weekdays 4600 1850 720 Weekend 2300 620 480 For Matrix B : Selling Price Profit Regular $ 3.59 $ 0.21 Plus $ 3.79 $ 0.24 Premium $ 4.19 $ 0.18
The product of A and B that is, A B where, A gives the records of regular, plus and premium gasoline sold during the week (Monday to Friday ) and B gives the selling price and profit for each type of gasoline. For Matrix A : Regular Plus Premium Weekdays 4600 1850 720 Weekend 2300 620 480 For Matrix B : Selling Price Profit Regular $ 3.59 $ 0.21 Plus $ 3.79 $ 0.24 Premium $ 4.19 $ 0.18
Solution Summary: The author calculates the product of A and B: AB, where A gives the records of regular, plus and premium gasoline sold during the week.
To calculate: The product of A and B that is, AB where, A gives the records of regular, plus and premium gasoline sold during the week (Monday to Friday ) and B gives the selling price and profit for each type of gasoline.
For Matrix A:
Regular
Plus
Premium
Weekdays
4600
1850
720
Weekend
2300
620
480
For Matrix B:
Selling Price
Profit
Regular
$3.59
$0.21
Plus
$3.79
$0.24
Premium
$4.19
$0.18
(b)
To determine
To calculate: The profit for the weekend if A gives the records of regular, plus and premium gasoline sold during the week (Monday to Friday ) and B gives the selling price and profit for each type of gasoline.
For Matrix A:
Regular
Plus
Premium
Weekdays
4600
1850
720
Weekend
2300
620
480
For Matrix B:
Selling Price
Profit
Regular
$3.59
$0.21
Plus
$3.79
$0.24
Premium
$4.19
$0.18
(c)
To determine
To calculate: The revenue for the entire week, if A gives the records of regular, plus and premium gasoline sold during the week (Monday to Friday ) and B gives the selling price and profit for each type of gasoline.
I want to learn this topic l dont know anything about it
Solve the linear system of equations attached using Gaussian elimination (not Gauss-Jordan) and back subsitution.
Remember that:
A matrix is in row echelon form if
Any row that consists only of zeros is at the bottom of the matrix.
The first non-zero entry in each other row is 1. This entry is called aleading 1.
The leading 1 of each row, after the first row, lies to the right of the leading 1 of the previous row.
PRIMERA EVALUACIÓN SUMATIVA
10. Determina la medida de los ángulos in-
teriores coloreados en cada poligono.
⚫ Octágono regular
A
11. Calcula es número de lados qu
poligono regular, si la medida
quiera de sus ángulos internos
• a=156°
A= (-2x+80
2
156 180-
360
0 = 24-360
360=24°
• a = 162°
1620-180-360
6=18-360
360=19
2=360=
18
12. Calcula las medida
ternos del cuadrilá
B
X+5
x+10
A
X+X+
Sx+6
5x=3
x=30
0
лаб
• Cuadrilátero
120°
110°
• α = 166° 40'
200=180-360
0 =
26-360
360=20
ひ=360
20
18 J
60°
⚫a=169° 42' 51.43"
169.4143180-340
0 = 10.29 54-360
360 10.2857
2=360
10.2857
@Sa
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