As Tia solved the system of equations below, she transformed matrices at different steps during the process. -a-b+20-
2a+b+c=2
-3a+2b+36-7
She noted the following matrices
|
II
IV
0
0
0
-1
-1
1 1
-2
-7
0
1
0
-1
0
-16
1 1 0 -1
0 1 0 -1
0 0 1 3
0
0 1
G
-3
2
0 0 22
66
In which order should the matrices be arranged when solving the system from start to finish?
OI, IV, III, II
O II, III, IVI
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18 units²

step-by-step explanation:

first let's find altitude bd using the distance formula

d = √((y₂ - y₁)² + (x₂ - x₁)²)

bd = √((0 - -3)² + (0 - 3)²)

bd = √18

given the placement of points a and c, we can denote that point d bisects segment ac.

we will call ac the base.

using the distance formula

ac = √((0 - 6)² + (-6 - 0)²)

ac = √72

knowing our base and our height, we can plug these into our triangle area formula

area = (b * h)/2

area = (√18 * √72) / 2

area = (√1296) / 2

area = 36 / 2

area = 18 units²

4+3x is the answer

hope you got it

b is the right answer