Arectangular box is twice as long as it is wide. the height of the box is 3 feet less than the width. if the box is x feet wide, what polynomial represents its volume in cubic feet?
a. b.
c. d.
what is the common difference in the sequence 8, 16, 24, 32, . .?
a. 24
b. 16
c. –8
d. 8
the floor of a rectangular room will be tiled with square tiles that measure 3 inches on each side. the room is 109 inches long and 103 inches wide.

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.