Column A: rColumn B: \(\frac{1}{r}\)
m and n are positive integers.Column A: m + nColumn B: mn
Column A:\((\frac{1}{x})^2\)Column B: x2
Column A: The area of the triangular regionColumn B: 6
An identification code read from left to right consists of 2 digits, a dash, 3 digits, a dash, and then 4 digits. Each digit can be any number from 0 through 9.Column A: The number of different identification codes possibleColumn B: 109
In a rectangular coordinate system, line k has x-intercept 4 and slope –2.Column A: The y-intercept of kColumn B: 2
x < 0Column A: |x|Column B: x
The average (arithmetic mean) of 3 numbers is 37.5.Column A: The sum of the 3 numbersColumn B: 100