How to do this question plz
1 answer:
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Answer:
95.85
Step-by-step explanation:
The area A of a circle as a function of its radius r is given by πr².
So, A(r) = πr²
Now, if there is a function f(x) and we have to calculate the average rate of change between the interval x = a and x = b is given by
Now, A(5.5) = π(5.5)² = 95.07 and A(25) = π(25)² = 1964.28
So, the average rate of change in area between the intervals r = 5.5 to r = 25 will be given by
(Answer)
Answer:
- With x being the number of people attending the party, and c(x) the cost in dollars.
Explanation:
The <em>total cost </em>is comprised of three costs, namely<em> the flat fee for the room rental</em> ($150), <em> the charge person for the Italian buffet </em>($14 per person), and <em>the tip</em> (18% added to the cost of the food). With this you can build your equation:
Where x respresents the number of people attending the party.
Convert 18% to its decimal form, which is 0.18 and simplify the equation:
Hence, calling the function c(x), it is:
, with x being the number of people attending the party, and c(x) the cost in dollars.