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vovikov84 [41]
4 years ago
6

Perform the row operation 1/3R1 and replace R1 on the following matrix

Mathematics
1 answer:
Ilia_Sergeevich [38]4 years ago
6 0

Answer:

\left[\left.\begin{matrix}1 & 0 & 0\\ 0 & 6 & 0\\ 0 & 0 & 7\end{matrix}\right|\begin{matrix}7\\ 5\\ 5\end{matrix}\right]

Step-by-step explanation:

The given augmented matrix is

\left[\left.\begin{matrix}3 & 0 & 0\\ 0 & 6 & 0\\ 0 & 0 & 7\end{matrix}\right|\begin{matrix}21\\ 5\\ 5\end{matrix}\right]

Here, we need to perform the row operation \dfrac{1}{3}R_1 and replace R_1 in the above matrix.

So, divide each element of R_1 in the given matrix and other elements remain same.

\left[\left.\begin{matrix}\dfrac{3}{3} & \dfrac{0}{3} & \dfrac{0}{3}\\ 0 & 6 & 0\\ 0 & 0 & 7\end{matrix}\right|\begin{matrix}\dfrac{21}{3}\\ 5\\ 5\end{matrix}\right]

\left[\left.\begin{matrix}1 & 0 & 0\\ 0 & 6 & 0\\ 0 & 0 & 7\end{matrix}\right|\begin{matrix}7\\ 5\\ 5\end{matrix}\right]

Therefore, the required matrix is  \left[\left.\begin{matrix}1 & 0 & 0\\ 0 & 6 & 0\\ 0 & 0 & 7\end{matrix}\right|\begin{matrix}7\\ 5\\ 5\end{matrix}\right].

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Answer:

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4 0
3 years ago
F(x)= 10x+6 and g(x)=<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20-%206%7D%7B10%7D%20" id="TexFormula1" title=" \frac{
Evgesh-ka [11]
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7 0
4 years ago
How do you solve #23?
scZoUnD [109]

Answer:

m= 67.5 and n=56.25

Step-by-step explanation:

  180-15=165

  165/2= 82.5

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7 0
1 year ago
Read 2 more answers
Name
Tpy6a [65]

Answer:

1. A container of milk 2L

2. An Eyedropper has 1 mL

3. A cup of punch 250 mL

4. A jar of pickles 500mL

Step-by-step explanation:

Without even measuring, just think of this problem logically. Remember that a 1 L is 1000mL, so it is 1000 times more than 1 mL.

A milk container would hold more than a cup of milk and that is more than 20 mL. The most logical answer would be 2L.

An eyedropper can hold just a little amount of liquid. Just think that it dispenses liquid in drops, the best answer would be 1mL (which is actually an estimate of the volume of a drop is.)

A cup of punch is about 250 mL. The keyword there is a CUP and 25L is a big amount and the cup would have to be HUGE.

Same as above, the keyword there is a jar. A 50L jar would be a very big amount for just a jar of pickles.

8 0
3 years ago
What is 3.45(4) − 8.18(1)
harkovskaia [24]
3.45(4) = 13.8
8.18(1) = 8.18
13.8 - 8.18 = 5.62
8 0
3 years ago
Read 2 more answers
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