Let r be the region bounded by the following curves. find the volume of the solid generated when r is revolved 1 + cos 2x). 2. about the x-axis. recall that cos x y cos 11x, y 0, x = 0 the volume of the region revolved about the x-axis is (type an exact answer.) cubic units. enter your answer in the answer box and then click check answer

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is