What is the equation of a circle that has a diameter with endpoints located at points (4,2) and (-4,8)?

Scenario: susan wants to make 2 square flags to sell at a crafts fair. the fabric she wants to buy is 3 meters wide. she doesn't want any fabric left over. what's the least amount of fabric she should buy? question: which equation will susan solve her problem? note: let x represent the length of 1 side of the flag. options: 1) 2x^2 = 4x 2) 8 +2x = 2(4x) 3) 2 * 2 = 4 * 2 4) 4x^2 -2x = 0

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120

What is the difference between –12 and –5? what is the distance between –12 and –7 on a number line? units