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Lyrx [107]
3 years ago
9

The value of x is reciprocal of the difference of a and b.

Geography
1 answer:
nika2105 [10]3 years ago
8 0

Answer:

is there an attachment or something?

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What decisions did scientists have to make after Eris was discovered?
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whether it was a planet or not

Explanation:

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If the half life for strontium-90 is approximately 28 years, then what is the whole life for strontium-90?
sveta [45]
Set this up as

10 = 40 (1/2)t/28

and solve for t in years.

10/40 = (1/2)t/28

log(0.25) = (t/28) log(0.5)

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Test the answer:

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Who was jean de la harpe
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What island country is off the east coast of Africa?
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