The sum of an integer and its inverse is 0.

Suppose there are 10 five and six-year-old attending a birthday party. when a 30 year old mother walks into the room with an infant in her arms, what happens to the mean age in the room? what happens to the standard deviation of ages in the room? a. the mean and standard deviation of both change. b. the meaning will change, but the standard deviation will stay approximately the same. c. i mean will stay approximately the same, but the standard deviation will change. d. the mean and standard deviation will both stay approximately the same.

What is the missing constant term in the perfect square that starts with x^2 -20x

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents