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Romashka [77]
2 years ago
12

A figure is created by using four semicircles and a rectangle. which is closest to the area of the figure? ​

Mathematics
1 answer:
Katena32 [7]2 years ago
7 0

Step-by-step explanation:

area of rrctangle:

12×8= 96cm²

now if rectangle dissapears and then we "glue" what's left, we gonna get two circles

area of circle which gas diameter of 12cm( so radius will be 6cm)will be

πr²=36π≈113.04

another circles radius is 4cm,so area is:

16π≈50.25

sum of all areas: S≈96+113.04+50.25≈259.28cm2

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( 0 < y < 23 / 6 ) mins

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Solution:-

We will define a variable ( x ) as the time it took for Jo Anne to give her speech at home.

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Jo Anne gave her speech which was 10 seconds less than the one she practised at home. We will convert the time in seconds to minutes as follows:

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The time taken by Jo Anne to complete her speech in English class can be represented as:

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Using the range of time that Jo Anne could take in delivering her speech in the class would be:

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                            0 - 1/6 < y < 4 - 1/6

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Since time can not be less than zero. We correct the lower limit to " 0 " as follows:

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