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BARSIC [14]
1 year ago
12

(-3+7i)(1-2i) can you help me with the answer to this

Mathematics
1 answer:
lozanna [386]1 year ago
4 0

Answer:

11 + 13i

Step-by-step explanation:

A must know is that

\sqrt{i}  =  - 1

Complex numbers

1st: foil the equations

- 3(1 - 2i) + 7i(1 - 2i)

- 3 + 6i + 7i- 14 {i}^{2}

2nd Combine like terms and substitute

i ^{2} for \:  - 1

- 3 + 14  + 13i

11  +  13i

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Solve the following inequality.<br> 2x + 2(x+5) &lt;+4(8 – 20)
Ilia_Sergeevich [38]

Answer:

x <-14.5

Step-by-step explanation:

2x + 2(x+5) <+4(8 – 20)

Distribute

2x+2x+10 < 4 (-12)

4x +10 < -48

Subtract 10 from each side

4x+10-10 <-48-10

4x< -58

Divide each side by 4

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x <-14.5

3 0
2 years ago
Who is 5 times 3 related to 5 / 1/3
olya-2409 [2.1K]

Answer:

5 times 3 and 5 divide by 1/3  yield the same result - see below.

Step-by-step explanation:

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3 0
3 years ago
In a​ survey, 400 people were asked to choose one card out of five cards labeled 1 to 5. The results are shown in the table. Com
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Answer:

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6 0
3 years ago
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ivann1987 [24]
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3 years ago
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Answer:

69 miles

Step-by-step explanation:

7 0
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