Shaded part means the yellow part
- The two sets are S and Y.
- The centre intersection part is A

- All the areas occupied by both sets is AUB .
Rest part :-

The decimal for this would be 7.575
Hope this helped :)
A= -81 + square root of 113
a<span>≈</span> -70.36985418
Answer: the answer is 50
Step-by-step explanation: I got it right in the quiz