Danielle built a ramp with a stopping block at the bottom for her scout troop's pinewood derby. she wants to paint the top and sides of the ramp. danielle calculated the area by adding the areas of 2 triangular faces and 3 rectangular faces from the ramp and 6 rectangular faces from the block. did danielle calculate the area correctly? if not, what was her mistake? a. yes, danielle calculated the area correctly. b. no, danielle needs to remove 1 rectangle from the ramp and 1 rectangle from the block. c. no, danielle needs to add 1 triangle to the ramp and remove 1 rectangle from the block. d. no, danielle needs to remove 1 triangle from the ramp and add 1 rectangle to the block.

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

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.