I need to write a discussion on the steps taken to get these answers please help.

r_- radius Areas = rr rzi _.:' h = height Area = ht2m') Circumference 2m Part 3: Assume that the height of your cylinder is 4 inches. Consider A as a function of r, so we can write that as A (T) = 2 W2 + S arr. What is the domain of A (r)? In other words, for which values of \"r is A ('3') dened? Part 11: Continue to assume that the height of your cylinder is 4 inches. Write the radius '1" as a function of A. This is the inverse function to A (5"), Le to turn A as a function of 7' into. if as a function of A. TH): @E@ Hints: - To calculate an inverse function, you need to solve for 1'. Here you would start with 2 A = 2 71"!\"2 | 3 171'. This equation is the same as 2 Tr + 311'?\" A = U which is a quadratic equation in the variable 1', and you can solve that using the quadratic formula. 32:31 in Mobius, in text mode you can type in (3*pi+1)f(x+1). There is more information in the Introduction to Mohius unit. - If you want to type in Part c: If the surface area is 200 square inches, then What is the rardius r? In other words, evaluate \"r (200). Round your answer to 2 decimal places. Hint: To compute a numeric square root such as V 17.3, you could I Use a spreadsheet such as Microsoft Excel or OpenOfce Calc and type in =sqrt(17.3) I Use a browser to connect to the Internet and type in sqrt( 1?.3) into a search field - Use a calculator The radius is Number inches if the surface area is 20!] square inches