Answer:
perimeter of triangle=sum of all sides
perimeter of triangle = 3/10ft + 3/10ft + 1/10ft
perimeter of triangle =7/10ft
Answer:
10
Step-by-step explanation:
48-20=28
28-18=10
that is how I see it at least
The easy answer: If, say, B is the zero matrix, i.e.

then

With
, we have

Since
, we can further write this as
