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Radda [10]
3 years ago
15

Match each description when z = 9 + 3i. 1. Real part of z, 3 2. Imaginary part of z, 9 - 3i 3. Complex conjugate of z, 3i 4. 3i

- z -3i 5. Z - 9, -9 6. 9 - z, 9
Mathematics
1 answer:
Andreyy893 years ago
5 0

Answer:

see below

Step-by-step explanation:

z = 9 + 3i

This is in the form a+bi   where a is the real part and b is the imaginary part

1.The real part is 9

2. The imaginary part is 3

The complex conjugate is a-bi

3. complex conjugate 9-3i

4. 3i - z = 3i - (9+3i) = 3i -9 - 3i = -9

5. z-9 = 9+3i - 9 = 3i

6.  9-z = 9- (9+3i) = 9-9-3i = -3i

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3 years ago
Is -4 a solution for the equation 5x (2-4)=2(5x -4)?
yarga [219]

Answer:

no it is 0.4

Step-by-step explanation:

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8 0
3 years ago
3
Zanzabum

A pergunta não está bem formatada. No entanto, pelo que parece óbvio

Responda:

3 horas

Explicação passo a passo:

Fração de hora gasta por sessão = 3/4 horas por sessão

Se o exercício for feito apenas aos domingos

Número de domingos por mês = 4

Portanto, número de sessões = 4

Fração de horas por sessão * Número de sessões

3/4 * 4 = 3 horas

Portanto, 3 horas são dedicadas ao exercício por mês

6 0
3 years ago
The sector of a circle with a 60 millimeters radius has a central angle measure of 30° . What is the exact area of the sector in
ASHA 777 [7]
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7 0
3 years ago
What is the surface area to volume ratio of a 5 cm cube?
joja [24]
Answer: 6/5

Explanation:
Given: 5cm cube
This means each side is 5 cm because a cube has equal sides.

Area of a square is length times width so area of 1 side of a cube:
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Surface area is the area of one side of a cube times the number of sides. Now, how many sides does a cube have? 6
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Surface area of a 5cm cube = 150

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Ratio of surface area to volume:
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6 0
3 years ago
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