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dybincka [34]
3 years ago
10

Which of the following are valid row operations for augmented matrices?

Mathematics
1 answer:
xxMikexx [17]3 years ago
6 0

Answer:

  • Switch positions of two rows.
  • Add elements of one row to another row.
  • Multiply elements of one row by a scalar

Step-by-step explanation:

In general, each row represents a linear equation. The rules of equality apply. They allow you to multiply both sides of the equation by a scalar, add equal values to each side of the equation (add one row to another). Rearranging the sequence of equations (swapping rows) does not change the system or its solution.

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Rom4ik [11]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
What is the smallest of three consecutive positive integers if the product of the smaller two integers is 10 more than 4 times t
r-ruslan [8.4K]
The smallest is 6
Three consecutive integers
X. Smallest 6
X+1. 7
X+2. Largest 8

X(X+1)= 4(X+2)+10
X^2+X= 4x+8+10
X^2+X-4x-18=0
X^2-3x-18=0

( X+3)(X-6)
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Don't use the negative

Check 6(7)= 4(8)+10
42=42
8 0
3 years ago
I need help on finding the slope of the lines for number 21?
Step2247 [10]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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matrenka [14]

0.9 x 10^4

Let’s break this down into steps.

So to start off with, you need to do 4.5/5 which = 0.9.

Now we can deal with the indices. 10^-3 / 10^-7 means we have to subtract them. Therefore, -3 - -7 = 4. Altogether, we have 0.9 x 10^4

The question states we should leave our answer in standard form.

So our answer is 0.9 x 10^4.
8 0
3 years ago
Find the perimeter of the figure to the nearest hundredth. Sorry to ask ANOTHER question on this stuff but I'm doing an assignme
WARRIOR [948]

Answer:

I did my best, but it has been a while. I really hope that this helps

Step-by-step explanation:

so you can find the perimeter of a circle

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7 0
2 years ago
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