What substitution should be used to rewrite 4x12  – 5x6  – 14 = 0 as a quadratic equation? u  =  x2 u  =  x3          u  =  x6          u  =  x12

Find the area of a parallelogram with the given vertices. p(-2, -5), q(9, -5), r(1, 5), s(12, 5)

What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955

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?