It’s A. The first option. Also pls brainlist
I'm confused what are you suppose to do
Answer:
y=97
Step-by-step explanation:
1st do 42+55=97 to find
2nd do 180-97=83 to find z so z=83
3rd do then do 180-83=97 sense y and z are supplementary
so therefore the answer is y=97
If brainiest is earned its greatly appreciated
Answer: a) AB =
; b)
; c) No, they are different; d) No, they are never the same;
Step-by-step explanation:
a) A =
, B =
. This multiplication is possible, because matrix A has 2 columns and matrix B has 2 rows. When those value are equal, the multiplication is possible.
AB =
.
=
b) BA =
.
=
c) As, we can see, parts a and b are differents.
d) With matrices, multiplication is not commutative, which means AB≠BA
Answer:
Area= 840
Step-by-step explanation:
Area= (20x13)x2+(10x12x1/2)x2+10x20
=520+120+200
=840
- Area=Two area of the triangle [13x20] + Two area of the rectangle + Under area (rectangle)- [10x20]