<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%20%5E2%3D16" id="TexFormula1" title="\sqrt{x} ^2=16" alt="\sqrt{x} ^2=16" align

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Mrrafil [7]

2 years ago

="absmiddle" class="latex-formula">

Mathematics

1 answer:

inn [45]2 years ago

5 0

Step-by-step explanation:

$({ \sqrt{x} }^{2}) = 16 \\ \sqrt{x } = \sqrt{16} \\ \\ sqrt \: root \: will \: be \: cancelled \\ so \: \\ x \: \: = 16$

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Three singers are chosen at random from a group of 5 Chinese, 4 Indians and 2 British singers.

slega [8]

<h2>Answer:</h2><h3>14 ways.</h3>

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6 0

3 years ago

Circle 1, Circle 2, and Circle 3 have the same center and have radii, respectively, of r₁ cm, r₂ cm, r₃ cm, where r₁ < r₂ &lt

ira [324]

Answer:

a) A₁ /A₂ = r₁² / (r₂² - r₁²)

b) A₂ /A₃ = (r₂² - r₁²) / (r₃² - r₂²)

Step-by-step explanation:

We have Circle 1 and area A₁

Area of circle 2 outside circle 1 = A₂

Area of circle 3 outside circle 2 = A₃

On the other hand we have

A₁ = π*r₁² area of circle 1

A₂´ = π*r₂² area of circle 2

A₃´ = π*r₃² area of circle 3

All areas in cm²

a) A₁ /A₂

A₁ = π*r₁²

According to problem statement A₂ = π*r₂² - A₁

A₂ = π*r₂² - π*r₁² ⇒ A₂ = π* (r₂² - r₁²)

Then A₁ /A₂ = π*r₁² / [π* (r₂² - r₁²)]

A₁ /A₂ = r₁² / (r₂² - r₁²)

b) A₂ /A₃

A₂ = π* (r₂² - r₁²)

And

A₃ = π* (r₃² - r₂²)

Therefore

A₂ /A₃ = π* (r₂² - r₁²) / π* (r₃² - r₂²) ⇒ A₂ /A₃ = (r₂² - r₁²) / (r₃² - r₂²)

A₂ /A₃ = (r₂² - r₁²) / (r₃² - r₂²)

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3 years ago

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So 6 canoes per trailer, there are 18 canoes total. How many trailes are needed to fit all the canoes.

3 trailers.

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3 years ago

Can someone help me with this question please?

alexira [117]

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3 years ago

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zalisa [80]

Answer:

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Step-by-step explanation:

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3 years ago