Which pair of numbers is not a factor pair of 48?
a) 4 and 12
b) -2 and -24
c) -8 and 6
d) 6 and 8

What is the measure of angle afe? 79 81 91 99

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

Is (root2 -2)^2 rational or irrational. show the steps and answer fast