the volume of rectangle solid is 12x³+8x²-3x-2cu. unit . the length of solid is 2x+1 and the width is 2x-1. find the height

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?