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
All elements have certain wavelengths of visible light that they can absorb, and later emit. These emission spectra are unique for EVERY element. Since these spectra are unique for each element, identification of the elements can be made from those spectra.
A new alletrope of carbon was found (buckminsterfullerine or
) was discovered using this spectra of red stars.
Answer: I think the answer is verbal and physical cues.
Explanation: Not only do you give cues with your words but also with your body language. (I think this was the answer on the quiz for my gifted and talented class)
Answer:
Look down
Explanation:
Firstly, since they were so different, and that fed into American's fear of the unkown. It also made Americans nervous because they felt outnumbered by these foreigners, and they felt like immigrants were going to take "their america."