The base of a circular fence with radius 10 m is given by x = 10 cos(t), y = 10 sin(t). The height of the fence at position (x, y) is given by the function h(x, y) = 3 + 0.03(x² - y²), so the height varies from 0 m to 6 m. Suppose that 1 L of paint covers 100 m².
Determine how much paint you will need if you paint both sides of the fence. (Round your answer to two decimal places.)

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The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?