Find the directional derivative of f at the given point in the direction indicated by the angle θ. (give your answer correct to at least three decimal places.) f(x, y) = sin(x + 2y) (4, −2) θ = 3π/4

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