Express the matrix
like
, where
if
and
if
. (
is known as kronecker's delta)
In the same form we express the matrix
.
The firs index indicate the row and the second the column.
By the multiplication of matrices we have
, where

because only
is non-zero in the last sum.
therfore we have
.
In the same manner we have
, where

And so, 
The elapsed time from starting at 10:10 and ending at 10:45, assuming the time of day is the same. Is 35 minutes. If it is not the same time of day, then it would be 12 hours and 35 minutes.
Answer:
41<67<72
Step-by-step explanation:
Since all 3 angles in a triangle add up to 180 degrees, you will need to add the two angles you have, and then subtract that from 180 to find the measurement of angle K.
41+67=108
180-108=72
Now you would just use your common knowledge and put arrange the measurements to be least to greatest!
41<67<72
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