Which of the following shows that polynomials are closed under addition when two polynomials 4x + 6 and 2x2 − 8x − 4 are added? 2x2 − 4x + 2 will be a polynomial 2x2 − 4x + 2 may or may not be a polynomial 2x2 − 12x − 10 will be a polynomial 2x2 − 12x − 10 may or may not be a polynomial

Needmax 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.

Which one is the correct answer, and why?

Alex's monthly take home pay is $2,500. what is the maximum bad debt payment he can maintain without being in credit overload?