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Ratling [72]
3 years ago
5

Which of the following is a complex number?

Mathematics
2 answers:
Bogdan [553]3 years ago
4 0

The answer is 4 + 3i

It is the only one there with a \sqrt{-1} or i

Like my answer? Consider marking it as brainiest!

const2013 [10]3 years ago
3 0

Answer: First option is correct.

Step-by-step explanation:

Since we have given that

Complex number is the number which contains real number along with imaginary number in the form of a+bi.

It is shown by "Argand plane" in which x-axis represents real number and y-axis represents imaginary number .

Hence, according to option,

4+3i is the only complex number as it has one real number a = 4 and one complex number b =3.

Hence, First option is correct.

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Which fraction represents the solution to -6/5/(-3/25) in simplest form?
Tresset [83]
To divide fractions, you flip the denominator and then multiply it by the numerator.

-6 / 5 x (-25 / 3)

Multiply straight across; the negative cancels out.

150 / 15

This can be reduced to 15, which is its simplest form.
7 0
3 years ago
Read 2 more answers
The sum of 3 times a number and 7 is 25
hammer [34]

Mathematically written:

3 * x + 7 = 25

3x + 7 = 25

3x = 25 - 7

3x = 18

x = 18 / 3

x = 6



Proof:

3 * 6 + 7 = 25

18 + 7 = 25

25 = 25 → both sides of the equation are equal, our answer is correct



Notes:

A number - Is an unknown number, called a variable, which in this case is substituted by the letter x.





Hope it helped,




BioTeacher101


5 0
3 years ago
Read 2 more answers
1.8.2
VLD [36.1K]

Answer:

5,

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-0.97

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3 years ago
Factorise <br> 84xy+196x-36y-84
LenaWriter [7]

Hi,

84xy+196x-36y-84

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