help me solve these questions. please avoid using decimals, use exact values instead. the answers you see are either wrong or only half right. please how me all the steps clearly in details.

NYA 4.5: Problem 9 (1 point) A woman at a point A on the shore of a circular lake with radius r = 4 wants to arrive at the point C diametrically opposite A on the other side of the lake in the shortest possible time. She can walk at the rate of 8mph and row a boat at 4mph. B What is the shortest amount of time it would take her to reach point C? 1.57 hours What is the longest amount of time it would take her to reach point C following a path like the path in the figure? 2.77 hours Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 2 times. Your overall recorded score is 50% You have 3 attempts remaining. Email Instructor Sho Q Search ENG 4 0 2023Previous Problem Problem List Next Problem NYA 4.5: Problem 13 (1 point) Find the point on the line 4x + 2y + 4 = 0 which is closest to the point (2, 2) blems ( -10/3 14/3 Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 1 time. Your overall recorded score is 0%. You have 4 attempts remaining. Email Instructor 10 v 11 / 12 13 ... 14 ... 15 / 16 ... n 17 V G_0315.jpg ENG Q Search PC ostly cloudyPrevious Problem Problem List Next Problem NYA 4.5: Problem 14 (1 point) Find the dimensions of the rectangle of largest area that can be inscribed in a circle of radius r. List the dimensions in non-decreasing order (the answer may depend on r). r/sqrt2 r/sqrt2 Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 1 time Your overall recorded score is 0%. You have 4 attempts remaining. Email Instructor ENG Q SearchPrevious Problem Problem List Next Problem NYA 4.5: Problem 16 (1 point) A Norman window has the shape of a rectangle surmounted by a semicircle. (Thus, the diameter of the semicircle is equal to the width of the rectangle.) If the perimeter of the window is 20 ft, find the dimensions of the window so that the greatest possible amount of light is admitted. base length = 40/(4+pi) total height = 20/(2+pi) ft Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 1 time. Your overall recorded score is 50%. You have 4 attempts remaining. Email Instructor ENG 2 4 0 Q Searchwork / moodi / nya_4.7 / 3 NU Previous Problem Problem List Next Problem rk Sets 7 blem 3 NYA 4.7: Problem 3 (1 point) ttings Given Problems f"(z) = 42 + 4 blem 1 and f'(-1) = -1 and f(-1) = 3. blem 2 Find f'(x) - 2x^2+4x blem 3 blem 4 and find f (4) = 2/3 oblem 5 ~ roblem 6 ~ Note: You can earn partial credit on this problem. roblem 7 roblem 8 Preview My Answers Submit Answers Problem 9 Problem 10 You have attempted this problem 2 times Your overall recorded score is 0%. Problem 11 You have 1 attempt remaining. Problem 12 Problem 13 Email Instructor Problem 14 Problem 15 Page generated at 05/15/2023 at 06:31pm EDT WeBWork @ 1996-2021| theme: math4 | ww_version: 2.16 | pg_version 2.16| The WeBWork Project IMG_1929.jpg IMG_0315.jpg IMG_1932.jpg IMG_1931.jpg IMG_1930.jpg ~ ENG 20.C Search Mostly cloudyPrevious Problem Problem List Next Problem NYA 4.7: Problem 14 (1 point) Given s f"(x) =12 - 2 and f'(-1) = -1 and f(-1) = 5. Find f'(x) = (1/2)x12-2x+1/2 and find f (1) = 1/3 Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 1 time. Your overall recorded score is 0%. You have 2 attempts remaining. Email Instructor 15 Page generated at 05/15/2023 at 06:31pm EDT WeBWork @ 1996-2021] theme: math4 | ww_version: 2 16 | pg_version 2. 16| The WeBWork Project IMG_1929.jpg IMG_0315.jpg G_1932.jpg IMG_1931.jpg IMG_1930.jpg 6:31 ING 7 2 2023-05 Q Search Mostly cloudydi / nya_4.7 / 15 Previous Problem Problem List Next Problem NYA 4.7: Problem 15 (1 point) ins suppose f"(x) = -16 sin(4x) and f'(0) = -6, and f(0) - -6. f (7 / 3) = Note: Don't confuse radians and degrees Preview My Answers Submit Answers You have attempted this problem 0 times You have 5 attempts remaining. Email Instructor 15 Page generated at 05/15/2023 at 06:31pm EDT WeBWork @ 1996-2021] theme: math4 | ww_version: 2.16 | pg_version 2. 16| The WeBWork Project Show al IMG_1929.jpg IMG_0315.jpg IMG_1930.jpg 6:31 P IMG_1931.jpg ENGD 2023-05- G_1932.jpg Search Mostly cloudy