Answer:
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Step-by-step explanation:tbjtujbtujbtjbtujtujtubjtujbtuj
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Angle 2 is 143
angle 4 is 37
angle 7 is 143
angle 8 is 37
Answer:
3
Step-by-step explanation:
A + B is calculated by adding the same positions in both matrices.
and position (2, 3) in A+B is therefore the sum of position (2, 3) in A plus the position (2, 3) in B, which is then
-4 + 7 = 3