If g(x)=−5x2−11 and f(x)=10x+5, find (f⋅g)(x).

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

What’s the range cuz i can’t find it?