Corresponding Angles are congruent.
1 answer:
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The half life formula is :
where N(t) = remaining quantity after t years
No = Original Quantity
t = time in years
T = half life in years
From the problem, we have :
N(t) = 30 grams
No = 100 grams
T = 674
Solve for t :
Take ln of both sides :
The answer is t = 1170.71 years