Answer:
Step-by-step explanation:
d) (-2 +4i) -( 3 + 9i) = -2 + 4i - 3 - 9i
= -2 - 3 + 4i - 9i
= -5 - 5i
e)3i(6 - 5i) = 3i *6 - 5i * 3i
= 18i - 15*i² {i² = -1}
= 18i -15*(-1)
= 18i + 15
= 15 + 18i
f) (-3 + 7i)(1 - 2i) = (-3)*1 - 2i * (-3) + 7i *1 - 2i* 7i
= -3 + 6i + 7i - 14i²
= -3 + 6i + 7i - 14*(-1)
= -3 + 6i+ 7i + 14
= 11 + 13i
Answer:
It's so dark! There are some words I can't see.
Hello!
2.
To find the area of a kite we use the equation

p is the line in the kite that goes from top to bottom
q is the line in the kite that goes from left to right
put in the values

Multiply

Divide
55
The answer is 55
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4.
I believe the answer is 770 yds squared
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6.
The ratio is 12:7
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8.
I do not know how to do 8 sorry
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10.
I can't see the whole picture put I will do my best
Since the angle inside the circle is 50° the side is also 50°
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12.
I do not know how to do 12 sorry
Hope this helps!
The equation that matches the graph of the greatest integer function is y = [x] - 2
<h3>How to determine the equation?</h3>
The parent function of an step function is represented as:
y = [x]
From the given graph, we can see that the lines are shifted 2 units down.
This means that:
(x,y) = (x,y - 2)
So, we have:
y = [x] - 2
Hence, the equation that matches the graph of the greatest integer function is y = [x] - 2
Read more about step function at:
brainly.com/question/4074174
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