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Digiron [165]
3 years ago
13

Need Help with finding half life or doubling time

Mathematics
1 answer:
adell [148]3 years ago
8 0

Answer:

12.2 hours

Step-by-step explanation:

You want to find t such that y = 2·y₀. That is, you want to solve

... 2y₀ = y₀·e^(0.0567t)

Dividing by y₀, you have

... 2 = e^(0.0567t)

and taking the natural log gives ..

... ln(2) = 0.0567t

... ln(2)/0.0567 = t ≈ 12.2248 . . . . divide by the coefficient of t

The doubling time is approximately 12.2 hours.

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Perform the indicated operations. Reduce the answers to lowest terms .<br>​
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1. (2+4+1)/9 = 7/9

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5. 3 1/2 + 4 2/3

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= (15-7) + (4/5 - 7/10)

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= 8 + 8/10 - 7/10

= 8 + 1/10

= 8 1/10

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3 years ago
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