Point C is placed at (12, 16) and point B is moved along the x-axis. Triangle ABC is still an isosceles triangle and point A is still at the origin. What is the new perimeter of ∆ABC? Provide valid mathematical reasoning and calculations to support your answe

If you answer 2+2 you will get over 80 points

Use circumcenter theorem to solve for the given values

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.