2 because you have to divide
The correct answer is 6 feet.
6.665 grams of the 13 grams remain after 8 hours.
<h3>How much of a 13 gram sample of iron-52 would remain after 8 hours?</h3>
The decay equation for the 13 grams of iron-52 is:
Where N is the amount of iron-52, and t is the time in years.
Where we used the fact that the half-life is exactly 8.3 hours.
Now, the amount that is left is given by N(8h), so we just need to replace the variable t by by 8 hours, so we get:
So 6.665 grams of the 13 grams remain after 8 hours.
If you want to learn more about half-life:
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The property of the questions are correctly stated below.
<h3>Properties of the various given equations </h3>
- Commutative property of addition: This is represented by equation 7
- Commutative property of multiplication: This is represented by equation 5.
- Associative property of addition: This is represented by equation 4.
- Associative property of multiplication: Not represented with any equation.
- Additive identity property: This is represented by equation 10.
- Multiplicative identity property: This is represented by equation 1.
- Multiplicative property of zero: This is represented by equation 8.
- Multiplicative inverse property: Not represented with any equation.
- Distribution property: This is represented by equation 2.
- Reflexive property: This is represented by equation 3.
- Symmetric property: Not represented with any equation.
- Transitive property: This is represented by equation 2.
- Substitution property: This is represented by equation 2.
Learn more about equations here:
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6d+23=14(d-2)
6d+23=14d-28
6d+51=14d
51=8d
51/8= 6.375 or 6 3/8
Hope this helps :)
