Ubidor anf wihger scholden
Answer:
1.) -2 - 1i
2.) -2 - 1i
3.) commutative
Explanation:
Given :
z = 1 + 3i
w = −3 − 4i
1.)
z + w :
1 + 3i + (-3 - 4i)
1 + 3i - 3 - 4i
1 - 3 + 3i - 4i
-2 - 1i
2.)
w + z
-3 - 4i + 1 + 3i
-3 + 1 - 4i + 3i
-2 - 1i
z + w = w + z
Hence, come number addition are commutative
Answer: b) Spatter
<u>A) Transfer Stains</u>
- When a bloodied object come in contact with another object and leave bloodstains behind.
- ex. bloody shoeprints
<u>B) Spatter Stains</u>
- When blood projects through the air because of some sort of impact.
- ex. blood gushes everywhere/artery spurts
<u>C) Passive Stains</u>
- When gravity acts on blood.
- ex. blood drips to the ground in drops/flows/pools.