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PLEASE HELP In about how many years is the radioactive substance half of its original weight? Type answer to one decimal place.

PLEASE HELP In about how many years is the radioactive substance half of its original weight? Type answer to one decimal place.
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PLEASE HELP

In about how many years is the radioactive substance half of its original weight? Type answer to one decimal place.

PLEASE HELP In about how many years is the radioactive substance half of its original-example-1
User Vojtech Trefny
by
8.2k points

1 Answer

3 votes

Answer:

13.5

Explanation:

(0.95)^x = ½

x = ^0.95 log ½

= 13.5

User Siva Kandaraj
by
8.0k points
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