There are two urns each containing two blue marbles and two red marbles. We randomly draw two marbles from the first urn and then randomly draw two marbles from the second urn, without returning any marbles. What is the probability that all of the four marbles that we drew are blue?

Measures of the angle of r, 31 s (x+4) t (3x+9)

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

8.74 rounded to the nearest whole number