3 years ago

Pls pls pls pls answer

Mathematics

2 answers:

Darina [25.2K]3 years ago

6 0

Answer:

c.168 cm

Step-by-step explanation:

the steps are in the picture

good luck :)

i hope this helps

have a nice day !!

Tju [1.3M]3 years ago

3 0

C. 168 I would say is the answer

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Step-by-step explanation:

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$\implies y\:\alpha \:x^2$ ......(1)

Y varies inversely as the square root of z (Given)
$\implies y\:\alpha\: \frac{1}{\sqrt z}$ ......(2)

Combining (1) & (2), we find:

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$\implies 5=\frac{4(n)^2}{9(4)}$

$\implies 5=\frac{(n)^2}{9}$

$\implies 5(9)=(n)^2$

$\implies 45=(n)^2$

$\implies n=\sqrt{45}$

$\implies n=6.70820393$

$\implies n\approx 6.708$

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