specific radioactive substance follows a continuous exponential decay model. It has a half-life of hours. At the start of the experiment, is present.

With the initial amount and t the time on hours and t the time in hours. since the half life is 12 hours we can find the parameter of decay like this:

And solving for b we got:

And then we have:

And the model would be given by:

Step-by-step explanation:

Assuming this complete question: "A specific radioactive substance follows a continuous exponential decay model. It has a half-life of 12 hours. At the start of the experiment, 82.6g is present. "

For this case we can create a model like this one:

With the initial amount and t the time on hours and t the time in hours. since the half life is 12 hours we can find the parameter of decay like this:

And solving for b we got:

And then we have:

And the model would be given by:

360 different combinations

1)is not similar since corresponding sides are not in the same ratio

2)are similar since corresponding sides are in the same ratio and corresponding angles are equal

hope it will

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