Which of the following expressions is in its simplest form?
15 bd + 5 - 2 b + 3 d + 23
XY + 6 xyz - 7 + 12 xy
35 - - ab2 + ab - 2 ab3
8 m + 4 n - 5 mn +7

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Find the solutions for a triangle with a =16, c =12, and b = 63º

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол