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SVEN [57.7K]
3 years ago
13

Help pls What is the rref of the identity matrix? Thanks!

Mathematics
1 answer:
rewona [7]3 years ago
5 0
The rref of the identity matrix is the identity matrix because the identity matrix itself is already in Row Reduced Echelon Form.

Thus, no elementary row operations are required to change the identity matrix into Row Reduced Echelon Form.

Have an awesome day! :)
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In a right triangle the lengths of the legs are a and b. Find the length of a hypotenuse, if: a=3, b=4;
prohojiy [21]

Answer:

The hypotenuse is 5

Step-by-step explanation:

We can use the Pythagorean theorem to find the hypotenuse of a right triangle

a^2 +b^2 =c^2 where a and b are the legs and c is the hypotenuse

3^2 +4^2 =c^2

9+16=c^2

25=c^2

Take the square root of each side

sqrt(25) =sqrt(c^2)

5 = c


6 0
3 years ago
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Robin surveyed 5 students from the choirs of 4 different schools. He asked them how many hours they practice singing each day. S
Fittoniya [83]

Answer:

The highest would be the letter B and the lowest would be letter C if the pat is what you need to know.

Hope it helps :)

3 0
3 years ago
-2/7x=4/7 how to check your answer
Ymorist [56]

Answer:

1)Evaluate the left-hand side expression at the given value to get a number.

2)Evaluate the right-hand side expression at the given value to get a number.

3)See if the numbers match.

Sorry if wrong

7 0
3 years ago
Please help this is due in tommorow! I will mark you as brainliest!
pshichka [43]

Answer:

325.26

Step-by-step explanation:

that's the answer because you have to multiply the top

I have question do we have to do something to the bottom?

5 0
3 years ago
-1 1/2 + (-1 1/2 <br> i need help
kirza4 [7]
-3
When there are two negative be added your answer will always be negative. In this case add the ones(2) and then add the 1/2s(1) and then add the two. For this you’ll get 3 but just add the negative sign.
6 0
3 years ago
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