Write a factor that you can use to rationalize the denominator of 4 6
1 answer:
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Answer:
The area that was not painted is
Step-by-step explanation:
step 1
Find the area of the rectangle
we know that
The area of a rectangle is equal to
In this problem we have
substitute
step 2
Find the area that was painted
step 3
Find the area that was not painted
Subtract the area that was painted from the total area of rectangle
so
240 days is 4 times the half-life, which means that a sample of 1000 mg will decay to
after 240 days.