Given f(x)= 2x-5 and   2 g(x)= 3x^2+2x-4, answer the following questions about the set of polynomials. a. Use the functions as examples to show that the set of polynomials is closed under subtraction. Explain your work. A) Use the functions as examples to show that the set of polynomials is closed under subtraction. Explain your work.
B) Use the functions as examples to show that the set of polynomials is not closed under division. Explain your work.

What is the value of the expression below? (81^2)^1/8

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

(a.s."similarity in right triangles"solve for xa.) 10b.) 20c.) 14.5d.) [tex] 6\sqrt{3} [/tex]