Which expression you find the length x of a side of a rectangle that has a diagonal of 15 units and a width of 9 units? a x^2 = 15^2 – 9^2 b x^2 = (15 + 9)^2 c x^2 = 15^2 + 9^2 d x^2 = (15 – 9)^2

F(x)= 1/x-4, g(x)=4x+1/x a. use composition to prove whether or not the functions are inverses of each other. b. express the domain of the compositions using interval notation.

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Me! i will mark brainliest! i don't get polynomials and all that other stuff. so this question is really hard. multiply and simplify.(x - 4) (x^2 – 5x – 6)show your