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-BARSIC- [3]
3 years ago
12

A sample of a material has 40000 radioactive particles in it today. Your grandmother measured 80000 radioactive particles in it

80 years ago. How many radioactive particles will the sample have 80 years from today?
Mathematics
1 answer:
vichka [17]3 years ago
7 0

Answer:

20,000 particles

Step-by-step explanation:

Here we are given that the amount if radioactive particles has come down to 40,000 from 80,000 in 80 years . Hence by the definition of Half Life,the half life of the item is 80 years.

Now we are asked to guess the number of radioactive particles after 80 years. As we already know that , the half life of material is 80 years , the number of radioactive particles will be reduced to its half in 80 years. Hence the number of radioactive particles after 80 years is 20,000

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Step-by-step explanation:

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In the figure below, segment CD is parallel to segment EF and point H bisects segment DE :
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Answer:

See explanation

Step-by-step explanation:

In the figure below, segment CD is parallel to segment EF, DE is a transversal, then angles DIH and HGI are congruent as alternate interior angles when two parallel lines are cut by a transversal.

Consider triangles DIH and EGH. In these triangles,

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siniylev [52]

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Step-by-step explanation:

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ladessa [460]

The first step to solve this problem is to find the area of the rectangular piece of fabric.

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