The answer is 576ft squared
Step-by-step explanation:
12 to the 2nd power=144
15 to the 2nd power =225
225-144=81
square root of 81 is 9
3 times.
If you use cross multiplication and using 2/3 and 2/1, you would get 6/2, which is equal to 3.
Answer:
46 housewives read all three magazines.
Step-by-step explanation:
Given:
n(A) = 150
n(B) = 200
n(C) = 156
n(A∩B) = 48
n(B∩C) = 60
n(A∩C) = 52
n(A∪B∪C) = 300
so we know the relation as:
n(A∪B∪C) = n(A) + n(B) + n(C) - n(A∩B) - n(B∩C) - n(A∩C) + n(A∩B∩C)
∴ n(A∩B∩C) = n(A) + n(B) + n(C) - n(A∩B) - n(B∩C) - n(A∩C) - n(A∪B∪C)
= 150 + 200+ 156 - 48 - 60 - 52 - 300
= 46
Hence the number of housewives that had read all three magazine is 46.
You would divide 5 seconds by 60 seconds since there is 60 seconds in a minute and get 12. Then you would times 12 by 100 and get 1200. Kylie swung 12 times a minute. Then you would divide by 60 to get the swings in minutes. So it would take 20 minutes.
60/5 = 12
12 x 100 = 1200
1200/60 = 20
