Homework: Unit 1: Hwk R.1 Real Numbers (Sets)
Question 1, R. 1.11
Use U= [1.2.3.4.5.6.7.8.9. 10), A=24,5, B = 15.7.8.9), and C=[3.6. 10) to find the given set
AUB
Select the corect choice below and, if necessary, fill in the answer box to complete your choice.
OA AUB= 0
(Use a comma to separate answers as needed.)
OB. The solution is the empty set

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.