Please help! D: (taking a quiz pls hurry)

Mathematics

1 answer:

Nina [5.8K]3 years ago

5 0

I think it’s a and gl on ur quiz

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Three measuring tapes are 10, 15 and 25 mlong. Find the shortest lenght which can be measured exactly by any one

Vitek1552 [10]

Answer:4

Step-by-step explanation:

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4 0

2 years ago

5 3/12 - 1 4/9 what is the answer

Vlad1618 [11]

The answer is 3 29/36

5 3/12 = 5 9/36

1 4/9 = 1 16/36

So the answer equation is 5 9/36 - 1 16/36

down: 4 45/36 - 1 16/36 = 3 29/36

I HOPE THIS HELPS

3 0

3 years ago

solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations. x-2y+

Alekssandra [29.7K]

Answer:

x = -5, y = -6, z = -3

Step-by-step explanation:

Given the system of three equations:

$\left\{\begin{array}{l}x-2y+3z=-2\\6x+2y+2z=-48\\x+4y+3z=-38\end{array}\right.$

Write the augmented matrix for the system of equations

$\left(\begin{array}{ccccc}1&-2&3&|&-2\\6&2&2&|&-48\\1&4&3&|&-38\end{array}\right)$

Find the reduced row-echelon form of the augmented matrix for the system of equations:

$\left(\begin{array}{ccccc}1&-2&3&|&-2\\6&2&2&|&-48\\1&4&3&|&-38\end{array}\right)\sim \left(\begin{array}{ccccc}1&-2&3&|&-2\\0&-14&16&|&36\\0&-6&0&|&36\end{array}\right)\sim \left(\begin{array}{ccccc}1&3&-2&|&-2\\0&16&-14&|&36\\0&0&-6&|&36\end{array}\right)$