A regular hexagon rotates counterclockwise about its center. It turns through angles greater than
0° and less than or equal to 360°. At how many different angles will the hexagon map onto itself?

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

Rob filled 5 fewer plastic boxes with football cards than basketball cards. he filled 11 boxes with basketball cards.

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2