Okay so this portfolio tells me to use matrices to find the combined amount of elements found in soil for each sample. How do I do that? is it just normal matrix multiplication or do I have to do something new?

Question

anonymous · Answer

http://assets.openstudy.com/updates/attachments/53456c9de4b087c1969cc077-ginny04-1397059005175-chapter12project....payten.pdf

anonymous · Answer

This is in regards to activity 2.

e.mccormick · Answer

$
\begin{bmatrix}
a&b&c
\end{bmatrix}
+
\begin{bmatrix}
d&e&f
\end{bmatrix}
=
\begin{bmatrix}
a+d&b+e&c+f
\end{bmatrix}

$

e.mccormick · Answer

So you add up all 5 matrices.

e.mccormick · Answer

Or all 4 matrices, I mean, to get all 5 answers.

anonymous · Answer

im stuck on this too ! :'(

anonymous · Answer

How do i get 5 answers? @e.mccormick

anonymous · Answer

Oh never mind! Sorry finals have me losing my mind. The answer would be [19.4  14.23  54.6  21.5  4.5] 
correct?

e.mccormick · Answer

I don't see hot the last one would be that low with the 26 xylene.