Iasked before and didn’t get an answer i really don’t understand this . which statement shows how two polynomials 4x^2 and x^2 + 3x + 7 demonstrate the closure property when multiplied? a. 4x^3 + 12x^2 + 28x may or may not be a polynomial b. 4x^3 + 12x^2 + 28x is a polynomial c. 4x^4 + 12x^3 + 28x^2 may or may not be a polynomial d. 4x^4 + 12x^3 + 28x^2 is a polynomial also i don't understand what it means by may or may not be polynomial. if someone could out that'd be great

Me 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.

Each day jake donates money to the global.

5cakes cost 3.50 how much do 7 cakes cost