Suppose we have four coins and possibly one coin is either too light or too heavy (all four might be true). (a) Show how to determine which of the nine possible situations holds with just two weighings, if given one additional coin known to be true. (b) Show that two weighings are not sufficient without the extra true coin

Marya wants to factor the polynomial 36x^3 -22x^2 - 144x.which term can she add to the polynomial that would not change its grestest common factor? check all that apply

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept

Acaterer charges $500 plus $30 per guest to cater a wedding. walt and traci don't want to spend more than $8000 on catering. write and solve an inequality in terms of the number of guests, g, that can be invited. a) 30g ? 8000; g ? 267 b) 500g < 8000; g < 16 c) 500 + 30g < 8000; g < 250 d) 500 + 30g ? 8000; g ? 250