The matrix given is
To find determinant
we do
So, the determinant of the given matrix is
To solve these types of questions, all what you need to do is simply solve for any one of the variables provided above and substitute the solved variable for the other equation. For instance in the first example:
X/2 - 2y = 5
12y + X - 2 = 0
X = 2 - 12y
(2 - 12y)/2 - 2y = 5
(2 - 12y)/2 = 2y + 5
2 - 12y = 2(2y + 5)
2 - 12y = 4y + 10
16 y + 8 = 0
16y = -8
Y =-8/16 = -1/2.
X = 2 - 12(-1/2)
X = 2 + 6
X = 8.
P(X, y) = P(8, -1/2).
Do the same method, for the other questions, except simplify them before doing so.
Idk it’s seems idk idk idk
Sixteen
When you add eight plus eight
Isn't that great?
When you divide two fifty six by sixteen
Darn, didn't that make your stomach turn green
I couldn't think of a better way to show you sixteen
Rather seems unseen
A better way to say Sixteen
Answer:
6.447
Step-by-step explanation:
He bought 264.10 / 6.95 = 38 bags.
Every bag covers 245 / 38 = 6.447 square feet.