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dem82 [27]
3 years ago
14

What are the steps to find (2+2i)(5+3i)?

Mathematics
2 answers:
pshichka [43]3 years ago
7 0

Answer:

16i + 4

Step-by-step explanation:

(2 + 2i)(5 + 3i) =

= 2×5 + 2i×5 + 2×3i + 2i×3i

= 10 + 10i + 6i + 6i²

= 6i² + 16i + 10

= - 6 + 16i + 10

= 16i + 4

WITCHER [35]3 years ago
6 0

(2+2i)(5+3i)
10+6i+10i+6i^2
10+16i+6(-1)
4+16i
When you have an “i^2”, you also have a negative one. The simplified answer is 4+16i
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3 years ago
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What is the y-intercept of the graph of the line whose equation is y=3/4x+1
Tanzania [10]

Answer:

The correct answer is "1".

Step-by-step explanation:

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4 0
3 years ago
what is the area of a circle with a diameter of 4.2 centimeters? us 3.14 for pi. round your answer to the nearest tenth.
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5 0
3 years ago
Write and equation in slope-intercept form of the line with slope -1/2 that contains the point (-4,-3)
Karolina [17]

Answer:

y=-1/2x-5

Step-by-step explanation:

Well we know that the slope is -1/2 so we can write the equation like this:

y=-1/2x+b (This is because of y=mx+b) (m is slope) (b is y-intercept)

Now we can replace the y and x with -4 and -3 because of (x,y). (-4,-3) x is -4 and y is -3

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-2-3=2-2+b

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Answer:

y=-1/2x-5

Hope this helps!

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3 years ago
Please help! I will mark as brainliest. &lt;3
Verdich [7]

Answer:

7

Step-by-step explanation:

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