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BabaBlast [244]
3 years ago
15

Help me answer this question

Mathematics
1 answer:
padilas [110]3 years ago
5 0

Answer:

The perimeter is 96.78 Hope this helps! :D

Step-by-step explanation:

radius squared times pi is the diameter.

radius is 6

squared is a number times itself

6 squared is 6 times 6 which 36

pi is 3.14

36 times 3.14 is 113.04

since a 1/4 piece is missing, 113.04 divided by 4

that is 28.26‬

113.04 minus 28.26 is 84.78

the length and width of the slice missing is 6

6 plus 6 is 12

84.78 plus 12 is 96.78

‬

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Answer:

There will be 22.5 grams left after 32 hours.

Step-by-step explanation:

A half-life is how long it takes for half of the amount to go away. In this case, we see that we have two half-life periods worth, which you can determine by dividing the total time by the half-life time.

32hrs/8hrs = 4 half lives.

Now we can raise 1/2 to the power of how many half lives we have (2). Then we multiply that by the amount in the sample.

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Step-by-step explanation:

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\frac{1}{3}πr^3

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Step-by-step explanation:

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