Solving the expression
we get 
So, Option A is correct.
Step-by-step explanation:
We need to solve the expression: 
Multiplying and dividing by 2-3i

So, solving the expression
we get 
So, Option A is correct.
Keywords: Complex numbers
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Answer:
180
Step-by-step explanation:
Answer:
Wind speed
Another very old approach to measure wind speed is through the use of a pressure tube
Microbars per second
Earthquake intensity
The currently accepted method is the moment magnitude scale, which measures the total amount of energy released by the earthquake.
The Richter scale is used to determine the intensity of earthquakes
Step-by-step explanation: