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Zarrin [17]
3 years ago
14

What is the sum of complex numbers 2+3i and 4+8i, where i= square root -1

Mathematics
1 answer:
bearhunter [10]3 years ago
3 0

Answer:

6+11i

Step-by-step explanation:

2+3i  +  4+8i

Add the real parts

2+4 = 6

And the imaginary parts

3i+8i = 11i

The complex number is the real plus the imaginary

6+11i

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Answer:

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Step-by-step explanation:

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3 years ago
15x=3x+120 <br><br> Show answer
inn [45]
15x = 3x + 120 (subtract both sides by 3x)
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5 0
3 years ago
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10 points
ollegr [7]

Answer:

FC=25.9

Step-by-step explanation:

<u>Congruent Triangles</u>

The figure shows two triangles FCD and FED. One of their sides is the radius of the circle, they both form a 90° angle with the line CD and ED and they share the same segment FD.

Thus, both triangles are congruent and we have the length of a side (12 units), one common side (the hypotenuse) and one unknown leg that must be equal. Therefore

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Solving

9x=27

x=3

The required side FD is the hypotenuse of any of the triangles. The unknown leg can be calculated by

13x-16=23

Or

4x+11=23

Thus

FD^2=12^2+23^2=673

Solving

FD=\sqrt{673}

\boxed{FC=25.9}

5 0
2 years ago
4. The trajectory of a model rocket can be modelled by the equation h = - 3t^2 + 24t- 25, where h is the height of the rocket in
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Answer:

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6x4? multiplication answer
MrRissso [65]

Answer:

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Step-by-step explanation:

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