Use trigonometry here.
sinx = opposite side/ Hypotenuse
so, sinx = 4/5 = 0.8
x= sin^-1(0.8) which is 53.13
Hope it helps
Sorry, I only know 8, 9, and 10.
8. This can be anything, but my guess would be 40 - 20 = 20
9. 3, because 3 x 3 = 9.
10. 7, because 7 x 4 = 28.
Hope this helped!
I would have wished to see Venn Diagram, however I will try to answer this problem:
A={1,2,3,4}
B={1,2,5,6}
(A∩B) ={1,2}
The complement of (A∩B) is (A∩B)'
(A∩B)' = A'∪B' (De Morgan's law)
A' ={5,6} and B'={3,4}
A'∪B' = {5,6} ∪ {3,4}
A'∪B' = (A∩B)' = {3,4,5,6}
I’m glad that you love math keep it up though why don’t you answer the your questions but anyway I’m not here to judge just to answer
Now the answer is =-4 =-1 = 3 = 5 = 6
11/2 / 3 = 11/6 pounds per friend
divide 11/2 pounds by 3 in order to get answer