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zvonat [6]
2 years ago
9

Find the area of the grey pathway

Mathematics
2 answers:
creativ13 [48]2 years ago
8 0

52 square metres

Step-by-step explanation:

we can divide the pathway in to 2 parts to find the area

1st part

length = 12m

breadth = 2m

area = 12 \times 2 =  {24}^{2}m

2nd part

length = 16-2 = 14

breadth = 2

area =

area = 14 \times 2 =  {28}^{2} m

atlast add both areas

52 square metres

morpeh [17]2 years ago
6 0

Answer:

<h2><u><em>52m²</em></u></h2>

Step-by-step explanation:

<em>find the area of ​​the horizontal rectangle, add it to the vertical rectangle and remove the common part</em>

2 * 16 + 2 * 12  - 2 * 2 =

52m²

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= (2u – 5) * (2u – 5)

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I hope this helps. =)
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Isotope mass (amu) abundance (%) 1 203.97304 1.390 2 205.97447 24.11 3 206.97590 22.09 4 207.97665 52.41 find the atomic mass of
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Answer:
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Explanation:
To get the average atomic mass of an element using the abundance of its isotopes, all you have to do is multiply each isotope by its percentage of abundance and then sum up all the products.

For the question, we have:
203.97304 amu has an abundance of <span>1.390% (0.0139)
</span>205.97447 amu has an abundance of 24.11% (0.2411)
206.97590 amu has an abundance of 22.09% (0.2209)
207.97665 amu has an abundance of 52.41 % (0.5241)

The average atomic mass can be calculated as follows:
average atomic mass = 203.97304(0.0139) + 205.97447(0.2411)
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average atomic mass = 207.2172085 amu

Hope this helps :)
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