2 questions: 1. what's The answer to the rest of this problem. 2. WHERE DID THE 2 COME FROM at the bottom
1 answer:
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Answer:
It takes 27 minutes for the element to decay to 35 grams
Step-by-step explanation:
Given:
Initial amount = 790 grams
Final amount = 35 grams
Half life = 6 minutes
To find:
Time taken for the element to reduce into 35 grams = ?
Solutions
Time taken =
On substituting the values given, Time taken
=
=
=
= 26.97
= 27 minutes
Option C: The solution is
Explanation:
The given expression is
We need to solution of the given expression.
The solution of the given expression can be determined by adding the two expressions.
Let us remove the parenthesis.
Thus, we have,
Adding the like terms, we have,
Thus, the solution is
Hence, Option C is the correct answer.