Amultiple choice examination has fifteen questions, each with five possible answers, only one of which is correct. suppose that one of the students who takes the examination answers each of the questions with an independent random guess. what is the probability that the student answers at least ten questions correctly

Aquadratic function f(x) has a turning point at (3,-7). what is the turning point of -f(x)?

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1

Hii1977 cleaner shrimp are a species of shrimp that clean parasites from other organisms. fish allow the shrimp to eat the parasites in their mouth. the shrimp get a source of nutrition. the relationship between the shrimp and the fish is this association indicates that for the smaill aneser arecommensal,mutualistic,or parasitic for the begger one the anser are the shrimp and fish benefit each other , the shrimp harm the fish, or the fish do not benetit from the shrimp