I'm honestly not too sure what exactly the question was implying, which means it could have been written better. I believe they are asking for you to multiply! So it would be 9*3, which would be 27. (3+3+3)
Answer: $38
Step-by-step explanation:
Answer:
1. I assume that stretching vertically by factor of 2 means that every point on the transformed curve is twice as far from the x axis as the original curve.
Imagine that you have plotted y=5x. you want to change the y scale so that each point on the original curve is two times as high. For example, one point on the original curve is (1,5). This point must be relocated to (1,10). Similarly, the point (2,10) on the original curve must be relocated to (2,20).
You can see that these relocations are accomplished if we transform the function to y=2(5x)=10x.
Step-by-step explanation:
hope this helps! even though it's just the first one...
Answer:
4.32
Step-by-step explanation:
7.7 + 1.6 = 9.3
9.3 + 5.3 +2.1 = 16.7
16.7 + 4.9 = 21.6
21.6 ÷ 5 = 4.32
Hope this helps plz mark brainliest if correct :D
The elementary row operation that will reduce the x–element in row 2 to 0 in this matrix is -2R1 + R2
<h3>How to determine the
elementary row operation?</h3>
The complete question is added as an attachment
The matrix is given as:
1 1 1 12
2 1 0 14
2 0 3 19
Rewrite as:
x y z
1 1 1 12
2 1 0 14
2 0 3 19
So, the x-element of the second row is
x = 2
When the first row is multiplied by negative 2 and added to the second row, the x-element of the second row is reduced to 0
This is represented as;
-2R1 + R2
i.e.
-2(1 1 1 12)
+ 2 1 0 14
---------------------------
0 -1 -2 -10
Hence, the elementary row operation that will reduce the x–element in row 2 to 0 in this matrix is -2R1 + R2
Read more about matrix at
brainly.com/question/11989522
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