Consider the quadratic function f(x)=−x2−6x−4, which has been given a restricted domain, as shown in the following graph.
1 answer:
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Answer:
(a)
(b)
Step-by-step explanation:
(a) Write and simplify an expression for the exact area of the sidewalk.
(b) Find the approximate area of the sidewalk. Use 3.14 to approximate .
(a) The sidewalk area is the difference in the area of outer circle and inner circle.
Use formula for the area of the circle:
The difference is
(b) Use approximation then