The probabilities that two students will not show up for class on a beautiful spring day are 0.3 and 0.4, respectively. it is a beautiful spring day. find the following probabilities. (see example 6. round your answers to two decimal places.) (a) neither will show up for class. (b) both will show up for class. (c) exactly one will show up for class.

3x = 729 solve for x plz . it's urgent. will mark

(50 ) mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.

What is the value of the discrimination for the quadratic equation 0=×2+2+×2