We have 9 distinct items and three persons. alice is to get 2 items, bob is to get 3 items, and charlie is to get 4 items. as just discussed, this can be done in a! b! 3! 4! ways. find a and b . a= 9 sin responder b= 2 sin responder a different way of generating the desired partition is as follows. we first choose 2 items to give to alice. this can be done in (cd) different ways. find c and d . (there are 2 possible values of d that are correct. enter the smaller value.)

What are “like terms”? why can we only add like terms?

Assume that 1400 births are randomly selected and 1378 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below. a. the number of girls is neither significantly low nor significantly high. b. the number of girls is significantly high. c. the number of girls is significantly low. d. it is impossible to make a judgment with the given information.

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.