The average heights of four samples taken from a population of students are shown in the table. Which of these is most likely closest to the average height
of the population?
A. 57
B. 66
C. 60
D. 62

When turned about its axis of rotation, which shape could have created this three-dimensional object?

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 . reset next

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota