Compute the unit normal vector field that will give the surface parametrized by r(u, v) = eu cos(v), eu sin(v), uv , D = {(u, v) | 0 ≤ u ≤ 4, 0 ≤ v ≤ 2π} the downward orientation. (Your instructors prefer angle bracket notation < > for vectors.)

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.