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Luda [366]
3 years ago
7

What is the value of pi?

Mathematics
1 answer:
astra-53 [7]3 years ago
4 0
The value of pi is 3,14
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What is the surface area of this right rectangular prism?
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Answer: Here's what I got:

Step-by-step explanation:

Is this what you wanted? My answer is A=22in²

Here's how I got it:

A=2(wl+hl+hw)=2·(1·3+2·3+2·1)=22in²

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-2.105 as a fraction?
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The easiest way is if it doesn't need to be simplified. Multiply -2.105 by \frac{1000}{1000}. You get the fraction -\frac{2105}{1000}. While this is technically the answer, you can simplify this down to \frac{421}{200}. Because 421 is a prime number, this can not be simplified any further. Therefore, the solution is \frac{421}{200}.

\frac{421}{200}.
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Answer:

The error E = ± 4.04 %

Step-by-step explanation:

Solution:-

- The sample data is used to estimate the population proportion ( p ).

- The success p^ = success percentage = 40 %

- The confidence interval CI = 98%

- The sample size n = 800

- The margin of error E:

- The margin of error "E" for estimation of population proportion ( p ) is given by:

                          E = z-critical*\sqrt{\frac{p~ ( 1 - p~ )}{n} }

Where, Z-critical value is defined by the significance level:

                         P ( Z < Z-critical ) = α / 2

Where, α : Significance level

                          α = 1 - CI

                         P ( Z < Z-critical ) = (1 - 0.98) / 2

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                         Z-critical = 2.33

- The error E of estimation is:

                        E = 2.33*\sqrt{\frac{0.4 ( 1 - 0.4 )}{800} }\\\\E = 0.04035

- The error E = ± 4.04 %

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