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max2010maxim [7]
4 years ago
5

Multiply and simplify the following complex numbers: (−3−i)⋅(3+i)

Mathematics
2 answers:
Gennadij [26K]4 years ago
7 0

Answer:

-8-6i

Step-by-step explanation:

(-3-i)(3+i) = -3(3)-3i-3i-i^2 = -9-6i-(-1) = -9-6i+1 = -8-6i

Hope this helped!

artcher [175]4 years ago
7 0

Answer:

-8-6i

Step-by-step explanation:

(happy to help)

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Answer:

It is 7

Step-by-step explanation:

They are vertical angle and need to be congruent.Their congruence is 105 so 14(7)+7=105

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4 years ago
30 POINTS!
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3 years ago
Acellus inverse variation
RUDIKE [14]

The current when the resistance is 10 ohms is 24 amps

<h3>What are variations?</h3>

Variations are simply data that change in values (i.e. not constant)

<h3>Types of variation</h3>

The types of variations are:

  • Direct variation
  • Inverse variation
  • Joint variation
  • Combine variation

From the complete question (see attachment), we have the following highlights

  • The variation is an inverse variation
  • When current (I) is 30 amps, the resistance (R) is 8 ohms

An inverse variation is represented as:

k = IR

Where k represents the constant of variation.

The above equation can be rewritten as:

I_1R_1 = I_2R_2

So, we have:

30 \times 8 = I_2R_2

240 = I_2R_2

When the resistance is 10 ohms, we have:

240 = I_2 \times 10

Divide both sides by 10

24 = I_2

Rewrite the above equation as:

I_2 = 24

Hence, the current when the resistance is 10 ohms is 24 amps

Read more about inverse variation at:

brainly.com/question/1327394

8 0
3 years ago
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Answer:

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Step-by-step explanation:

Distributive Property: \bold{a(b+c)=(a*b)+(a*c)}

Write An Equation:

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Solve:

5 * x = 5x

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Rewrite Equation

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3 years ago
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sertanlavr [38]
'Multiples' of 7...? 
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