Write the equation of the line that is the perpendicular bisector of the segment with endpoints (4, 1) and (2, 5)

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Prove that 16^4-2^13-4^5 is divisible by 11.

Siri can type 90 words in 40 minutes about how many words would you expect her to type in 10 minutes at this rate