Which of the following represents 20 = 5 × 4?
A.
20 is 2 times as many as 10
B.
4 is 5 times as many as 20
C.
5 is 4 times as many as 20
D.
20 is 5 times as many as 4

Aregular 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?

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis

Determine if the equation defines y as a function of x: 2xy = 1. yes o no