The area of a circle with radius r is represented by the function h(r ); therefore using the function notation, the area of a circle whose radius is 133 cm is represented by
[tex]h(g(133))[/tex]
(b).
The function that gives the radius as a function of area is
[tex]j(A)[/tex]
and the function that gives the circumference as a function of radius is
[tex]f(r)[/tex]
therefore, the function that gives
[tex]f(j(A))[/tex]
When A = 5.4cm^2 we have
[tex]f(j(5.4))[/tex]
