<span><span><span><span>=−<span><span>2x</span>y</span></span>+<span>3x</span></span>+<span>−<span><span>2x</span>y</span></span></span>+<span>3x
</span></span><span>=<span><span>(<span><span>−<span><span>2x</span>y</span></span>+<span>−<span><span>2x</span>y</span></span></span>)</span>+<span>(<span><span>3x</span>+<span>3x)
=-4xy+6x
</span></span></span></span></span>
And the answer is A. =-4xy+6x
I believe it should be about 40% because you divide 120min(2hrs) by 48min and get 2.5 then you divide 100 by 2.5 and get 40%
Regrouping is only done into lower place values. For example, tens to ones and hundreds to tens.
<em>Roberto </em><em>did not include </em><em>the </em><em>first term</em><em> of the numerator (0-2)^2 in his calculation.</em>
The mean of the data is also known as average.
Given the set of data 0, 2, 1, 2, 5
Mean = 0+2+1+2+5/5
Mean = 10/5
Mean = 2.0
To get the standard deviation, we will use the SD formula as shown:


Comparing this with Roberto's calculation, we can see that <em>Roberto </em><em>did not include </em><em>the </em><em>first term</em><em> of the numerator (0-2)^2 in his calculation.</em>
<em>Learn more here: brainly.com/question/10557301</em>