If angle r and angle s are supplementary, and angle r and angle t are supplementary, then angle t and angle s are congruent true or false and if false give a reason why it's false

Sketch one cycle if the cosine function y=2cos2theta

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Uestion 1(multiple choice worth 5 points) (05.02)alex wants to paint one side of his skateboard ramp with glow-in-the-dark paint, but he needs to know how much area he is painting. calculate the area of the isosceles trapezoid. isosceles trapezoid with top base 12 feet, bottom base of 18 feet, and height of 6 feet. 72 ft2 84 ft2 90 ft2 108 ft2