Factor -7x3+21x2+3x-9 by grouping what is the resulting expression

Let w=23 . what is the value of w + 45 ?

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

The distributive property allows you to say that 3(x − 1) = 3x −