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Look at attached image please

So it says “the cost of building a light house is proportional to the cube of its height ,h”

And then follows on to the page I’ve shared

Does anyone know what to do

Look at attached image please So it says the cost of building a light house is proportional to the cube of its height h And then follows on to the page Ive shar class=

Respuesta :

  • X=20
  • Y=40
  • Z=60

We need ratio

[tex]\\ \tt\hookrightarrow X:Y:Z=20:40:60=1:2:3[/tex]

#2

[tex]\\ \tt\hookrightarrow \dfrac{\sqrt{3}(\sqrt{3}+\sqrt{2})}{3-2}[/tex]

[tex]\\ \tt\hookrightarrow 3+\sqrt{6}[/tex]

#b

[tex]\\ \tt\hookrightarrow \dfrac{\sqrt{5}+2\sqrt{2}(2\sqrt{5}+\sqrt{2})}{20-2}[/tex]

[tex]\\ \tt\hookrightarrow \dfrac{14+5\sqrt{10}}{18}[/tex]

#15

  • y=√x

Graph attached

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