3 years ago

Simplify square root at end. pythagoreoms theorm

Mathematics

2 answers:

Crank3 years ago

8 0

14.2 yd

my answer needs to be 20 characters long???

hows your day?

kiruha [24]3 years ago

8 0

Answer:

14.21

Step-by-step explanation:

11 square + 9 square = 202

and then square root 202 and you get 14.21

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zalisa [80]

Answer: $(57.41,\ 62.19)$

Step-by-step explanation:

Given : Sample size : $n=40$

Sample mean : $\overline{x}=59.8\text{ seconds}$

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Formula to find the confidence interval for population mean :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=59.8\pm(1.645)\dfrac{9.2}{\sqrt{40}}\\\\\approx59.8\pm2.39\\\\=(59.8-2.39,\ 59.8+2.39)\\\\=(57.41,\ 62.19)$

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nikdorinn [45]

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2 years ago

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