a 42 inch piece of steel is cut into three pieces so that the second piece is twice as long as the first piece, and the third piece is two inches more than five times the length of the first piece. find the lengths of the pieces

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

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

Which of the following vectors are orthogonal to (2,1)? check all that apply