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3 years ago

Determine the missing number in the equation 13-2=12-?

Mathematics

1 answer:

soldier1979 [14.2K]3 years ago

5 0

For the equation to work, you have to have the same number on both sides of the equal sign

so to find ?, you can do:

13 - 2 = 12 - ? Simplify

11 = 12 - ? Subtract 12 on both sides

-1 = - ? Multiply -1 on both sides

1 = ?

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The equation of the isotope decay is:

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14-Carbon has a half-life of 5568 years, the time constant of the isotope is:

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$t = 3335 \pm 13\,years$

Lastly, the relative amount is estimated by direct substitution:

$\frac{m(t)}{m_{o}} = e^{-\frac{3335\,years}{8032.926\,years} }\cdot e^{\mp\frac{13\,years}{8032.926\,years} }$

$\left(\frac{m(t)}{m_{o}} \right)_{min} = e^{-\frac{3335\,years}{8032.926\,years} }\cdot e^{-\frac{13\,years}{8032.926\,years} }$

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$\left(\frac{m(t)}{m_{o}} \right)_{max} \approx 0.661$

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2 years ago

Determine the missing number in the equation 13-2=12-?​

Determine the missing number in the equation 13-2=12-?