In the expression, the real number a equals 12 and the real number b equals -16.
<h3>How to explain the information?</h3>
It should be noted that the expression given is:
= (4 - 2i)²
Therefore, we need to expand the expression. This will be:
= (4 - 2i)(4 - 2i)
= 16 -8i -8i + 4i²
= 16 -16i +4i²
Substitute -1 for i²
= 16 - 16i + 4(-1)
= 16 - 16i - 4
= 12 - 16i
Therefore, the value of the expression is 12 - 16i.
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Evaluate the expression ( 4 − 2 i )² and write the result in the form a + b i.
-5.4 - (2.1 + 1.8)=-9.3
So I would say A. Thanks for asking your question today and have a good day on Brainly.com! :)
Answer: B false
Step-by-step explanation:
A) 6 because 12 divided by 2 is 6
B) 9 because 45 divided by 5 is 9
C) 23 because 207 divided by 9 is 23
Answer:
C - 40
Step-by-step explanation:
The unit rate in a graph is how much a unit increases with time. The unit here is Distance (mi) and the time here is Time (h). So to find the unit rate, you divide the y-value with its corresponding x-value (given it is a straight line, which it is in this case).
So for example, let's take the unit 80mi, its corresponding x-value is 2, so 80/2 = 40. Let's do the same for 160mi, its corresponding x-value is 4, so 160/4 = 40 and so on. The value will be the same for all x-y values in the graph.
