A radio station gave away concert tickets every hour yesterday. At the end of the fifth hour, the station had 418 tickets left.
1 answer:
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Step-by-step explanation:
You have found a function r(V(t)). We can see that this function is a one variable function. The variable is time.
So in this specific function we can call r(v(t)), r(t).
So:
If α is the moment that the radius is 10 inches and since the function above gives radius in inches we have to solve the equation:
Which is the same as:
system of inequalitities is
thats the first equation, then
and
answer is the second one