Answer:
![A = \left[\begin{array}{cccc}1&-1&-3&-5\\4&2&0&-2\\7&5&3&1\end{array}\right]](https://tex.z-dn.net/?f=A%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcccc%7D1%26-1%26-3%26-5%5C%5C4%262%260%26-2%5C%5C7%265%263%261%5Cend%7Barray%7D%5Cright%5D)
Step-by-step explanation:
A = (aij)
i representa a linha e j a coluna.
Tipo 3x4
Isto implica que a matriz tem 3 linhas e 4 colunas.
aij = 3i – 2j.
Primeira linha:
![a_{1,1} = 3(1) - 2(1) = 1](https://tex.z-dn.net/?f=a_%7B1%2C1%7D%20%3D%203%281%29%20-%202%281%29%20%3D%201)
![a_{1,2} = 3(1) - 2(2) = -1](https://tex.z-dn.net/?f=a_%7B1%2C2%7D%20%3D%203%281%29%20-%202%282%29%20%3D%20-1)
![a_{1,3} = 3(1) - 2(3) = -3](https://tex.z-dn.net/?f=a_%7B1%2C3%7D%20%3D%203%281%29%20-%202%283%29%20%3D%20-3)
![a_{1,4} = 3(1) - 2(4) = -5](https://tex.z-dn.net/?f=a_%7B1%2C4%7D%20%3D%203%281%29%20-%202%284%29%20%3D%20-5)
Segunda linha:
![a_{2,1} = 3(2) - 2(1) = 4](https://tex.z-dn.net/?f=a_%7B2%2C1%7D%20%3D%203%282%29%20-%202%281%29%20%3D%204)
![a_{2,2} = 3(2) - 2(2) = 2](https://tex.z-dn.net/?f=a_%7B2%2C2%7D%20%3D%203%282%29%20-%202%282%29%20%3D%202)
![a_{2,3} = 3(2) - 2(3) = 0](https://tex.z-dn.net/?f=a_%7B2%2C3%7D%20%3D%203%282%29%20-%202%283%29%20%3D%200)
![a_{2,4} = 3(2) - 2(4) = -2](https://tex.z-dn.net/?f=a_%7B2%2C4%7D%20%3D%203%282%29%20-%202%284%29%20%3D%20-2)
Terceira linha:
![a_{3,1} = 3(3) - 2(1) = 7](https://tex.z-dn.net/?f=a_%7B3%2C1%7D%20%3D%203%283%29%20-%202%281%29%20%3D%207)
![a_{3,2} = 3(3) - 2(2) = 5](https://tex.z-dn.net/?f=a_%7B3%2C2%7D%20%3D%203%283%29%20-%202%282%29%20%3D%205)
![a_{3,3} = 3(3) - 2(3) = 3](https://tex.z-dn.net/?f=a_%7B3%2C3%7D%20%3D%203%283%29%20-%202%283%29%20%3D%203)
![a_{3,4} = 3(3) - 2(4) = 1](https://tex.z-dn.net/?f=a_%7B3%2C4%7D%20%3D%203%283%29%20-%202%284%29%20%3D%201)
Matriz:
A matriz é dada por:
![A = \left[\begin{array}{cccc}1&-1&-3&-5\\4&2&0&-2\\7&5&3&1\end{array}\right]](https://tex.z-dn.net/?f=A%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcccc%7D1%26-1%26-3%26-5%5C%5C4%262%260%26-2%5C%5C7%265%263%261%5Cend%7Barray%7D%5Cright%5D)
Answer:
B
Step-by-step explanation:
the answer is B. Branliest ???
$257.25; First you take what the original price was and divide it by 100, then multiply it by the percent you want to find. This is because if 1.47 * 100 is 147 (original value) then you can multiply it by any % to find the percent value of the set number.
147/100 = $1.47
1.47 * 75 = $110.25
Now add this to the original number to find the answer
110.25+147 = $257.25
It would be 1/4 of the original volume