1 hour MATHEMATICS
[60 marks]
Answer four questions in all. All questions carry equal marks.
h
(a)
If
U = {x CN; xẤ20}
A = {x: 1<x<10, where x is a composite number} B= {prime factors of 40},
C = {x: 1<x< 20, where x is a square number}
(i)
List the member of
a. A'UB
B. (A n B!) u C!
Y. (AluC)
8. U
(
ii)
Prove that union (u) is associative with respect to set A, B and C.
O

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

the answer is 1030 it's very simple math.

step-by-step explanation:

oh the deck is the size of my dic k so about 320 inches hope u get my dic k as the answer

6 students plese give brainliest