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Simora [160]
3 years ago
13

the diameter of a cicrle is 72.4 millimeters . find the area of this circle in square millimeters. round your answer to the appr

opriate number of significant
Mathematics
1 answer:
Temka [501]3 years ago
4 0

Answer:

4,116.9mm² (rounded up to nearest one decimal point)

Step-by-step explanation:

Diameter of a circle is 72.4mm (where mm stands for millimeters)

Area of a circle is given by πr²

Radius (r) = 72.4mm ÷ 2 = 36.2mm

Area = π × (36.2mm)² = 4,116.868677mm²

That is  4,116.9mm² (rounded up to one decimal point)

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Ostrovityanka [42]

Answer:

2

Step-by-step explanation:

It sounds like we are pretending A is the universe.  The only numbers in our world are 1,2,3,4, and 5.

You are given B is all numbers greater than 2.

The complement of B would all the elements not listed in B.

The elements in B are 3,4, and 5, since we are looking for numbers greater than 2 in our world of numbers above.

The elements not in B are 1 and 2.

So B complement is {1,2}.

There are 2 elements in our set for B complement. The elements that were counted were just the element 1 and the element 2.

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3 years ago
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What is £56 divided in a ratio of 3:5?
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</span>and
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There are 4 possible ways to place the baseballs into containers.

Step-by-step explanation:

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