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kvv77 [185]
2 years ago
7

What is the additive inverse of the complex number 9 – 4i? –9 – 4i –9 4i 9 – 4i 9 4i

Mathematics
1 answer:
san4es73 [151]2 years ago
8 0

The additive inverse of the complex number 9 -4i as described in the task content is; -9 +4i.

<h3>What is the additive inverse of the complex number?</h3>

It follows from convention that the additive inverse of a number can be obtained by multiplying the number by; -1.

On this note, it follows that the additive inverse of the complex number as given in the task content is; -(9 -4i) = -9 + 4i.

Read more on additive inverse;

brainly.com/question/1548537

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Answer:

r≈3.95in

Step-by-step explanation:

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3 years ago
Reduce then calculate 7/8 x 4/15 x 3/7 = ? <br><br> Can you help?
Zepler [3.9K]

since this is a multiplication, all the numerators are just factors of the product numerator and all denominators are just factors of the product denominator, so we can simply reorder them some, without changing the product.


\bf \cfrac{7}{8}\times \cfrac{4}{15}\times \cfrac{3}{7}\implies \cfrac{7}{7}\times \cfrac{4}{8}\times \cfrac{3}{15}\implies \cfrac{1}{1}\times \cfrac{1}{2}\times \cfrac{1}{5}\implies \cfrac{1\cdot 1\cdot 1}{1\cdot 2\cdot 5}\implies \cfrac{1}{10}

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3 years ago
One brother says of his younger brother: “Two years ago, I was three times as old as my brother was. In three years’ time, I wil
aleksklad [387]

Answer:

17

Step-by-step explanation:

Let us suppose two years ago my brother's age was x years

Then, my age was 3x

Three years from now, my brother's age will be (x +2+3) = (x+5) years

And my age will be (3x+2+3) = (3x+5) years

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Answer:

Easy,

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Step-by-step explanation:

8 0
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Answer:

Total withholding allowances are 39.

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Given the gross earning of John = $743.61

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Number of withholding allowances = 743.61 / 19 = 39.14 or 39 (round off).

4 0
3 years ago
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