Given that a is the longest side length in the triangle, which of the following inequalities would make the triangle above an obtuse triangle?

What is the value of x in the this question ?

Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days

Find the root(s) of f (x) = (x- 6)2(x + 2)2.