The remaining amount after 4 years is 1.25 kg
<h3>How to determine the remaining amount?</h3>The half life of a function is represented as:
Where
Ao represents the initial amount
So, we have:
In 4 years, t = 4.
So, we have:
This gives
Evaluate the expression
A = 1.25
Hence, the remaining amount after 4 years is 1.25 kg
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Answer:
9 and 5.
Step-by-step explanation:
So we have the expression:
In order to combine like terms, the variables must be <em>exactly</em> the same: not one less, not one more.
3x²y and 2x² <em>cannot</em> be combined because the first value has a y.
7x², 3x²y, and 2x² also <em>cannot </em>be combined because the second value has a y.
9 and 5 is the only one that can be combined because they are just integers. They can be added to be 14.
2, 3, 5, and 9 <em>cannot</em> be combined because the 2 and the 3 are tied to the variables as coefficients. They are not constants.