Are the following polynomials? 1. f (x) = 2x3 + 5x2 + 4x + 8
2. f (x) = 2x2 + 1-1
3. f(x) = 5 - 2 + 723 - 22
4. f (x) = ſæ2 – x4 +5 + 8x
5. f(x) = 2/3
6. f(x) = m + - 2

Witch represents the inverse of the function f(x)=1/4x-12

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?

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work: