If f(x)=−x^2−8x+7, and g(x)=x−1, what does (g−f)(x) equal?

(g−f)(x)=−x^2−7x+6
(g−f)(x)=x^2+9x−8
(g−f)(x)=−x^2−9x+8
(g−f)(x)=−8x+8

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Which statements regarding efg are true? check all that apply.

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297