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erma4kov [3.2K]
4 years ago
8

Perform the indicated matrix row operation and write the new matrix

Mathematics
1 answer:
Ne4ueva [31]4 years ago
5 0
The given operation involves just swapping the two rows, so carrying out R_1\leftrightarrow R_2 on the matrix gives

\left[\begin{array}{cc|c}5&5&5\\1&-\dfrac23&5\end{array}\right]\to\left[\begin{array}{cc|c}1&-\dfrac23&5\\5&5&5\end{array}\right]
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Solve for a.<br> -3a=39<br><br> i need help
san4es73 [151]

Answer: a=-13

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
What is the missing angle of the triangle 48° 58°
Vera_Pavlovna [14]

Answer:

74 degrees

Step-by-step explanation:

Start w/180 degrees. (The total measure of a triangle.) Then subtract 106 (the sum of the 2 known angles) from 180. We then get 74 degrees (The measure of the missing angle)

4 0
2 years ago
Which is a factor of x² - 11x + 24?<br>A.) x - 4<br>B.) x - 3<br>C.) x + 3<br>D.) x + 4<br>​
KIM [24]

Answer:

B. x - 3

Step-by-step explanation:

I don't know if you're looking for both factor.

x² - 11x + 24

we have to think about what two number gives us 24 if we multiply and -11 if we add.

8 * 3

<u>-8 * -3 </u>

4 * 6

-6 * -4

12 * 2

-12 * -2

if we check, only -8 * -3 gives us 24 and -11 so

(x - 8) (x-3)

x² - 3x - 8x + 24

x² - 11x + 24

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7 0
4 years ago
Tim cut a 2.3 foot length of pipe from a pipe that was 4.1 feet long how long is the remaining piece of pipe
aniked [119]

Answer:

1.8

Step-by-step explanation:

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There ya go

7 0
3 years ago
What is the slop of the line?
miskamm [114]
The slope of the line is 2. Why? Well, see below for an explanation!

The slope of a line is found by using the formula rise/run (rise over run). This means that by starting at the initial value of the y-intercept, 3, we would count how many units away we are from the next complete point. We do so by counting from left to right, and in this case, going up and then to the right. To get from the point (0, 3) to the point (1, 5), we would move two spaces vertically along the y-axis and one space horizontally along the x-axis. Because the slope of the line is found using the formula m = rise over run, the slope would be 2/1 because we went up 2 points and to the right one. When simplifying, we will find that 2 divided by 1 equals 2. Hence, our slope is 2.

Your final answer: The slope of the line is 2/1 or 2. If you need extra help, let me know and I will gladly assist you.
8 0
2 years ago
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