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3 years ago

The sentence "Nine is more than a number" can be represented by the inequality 9 ≥ n . true or false

Mathematics

2 answers:

Jet001 [13]3 years ago

4 0

my schooling says its false though it is a bit of both. half right it is still wrong. false would be correct

matrenka [14]3 years ago

3 0

It's a bit of both, actually.

9 ≥ n actually states that the quantity 9 is either greater than or equal to the value of the variable n.

Depending on how exact you mean, it's true and false, because 9 ≥ n technically includes 9 is more than a number, but it also could be 9 is equal to a number.

I'd say the answer is probably true, but it's a bit confusing.

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Answer:

The modulus of the complex number 6-2i is:

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Step-by-step explanation:

Given the number

$6-2i$

We know that

$z = x + iy$

where x and y are real and $\sqrt{-1}=i$

The modulus or absolute value of z is:

$|z|\:=\sqrt{x^2+y^2}$

Therefore, the modulus of $6-2i$ will be:

$z=6-2i$

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$|z|\:=\sqrt{6^2+\left(-2\right)^2}$

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$=\sqrt{36+4}$

$=\sqrt{40}$

$=\sqrt{2^2}\sqrt{2\cdot \:5}$

$=2\sqrt{2\cdot \:5}$

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Therefore, the modulus of the complex number 6-2i is:

$|z|\:=2\sqrt{10}$

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