Challenge! brainliest for those who answer first
1) show that diagonals of a square equal and bisect each other at right angles.

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?