Mathematics Answer
(1a)
Given A={2,4,6,8,...}
B={3,6,9,12,...}
C={1,2,3,6}
U= {1,2,3,4,5,6,7,8,9,10}
A' = {1,3,5,7,9}
B' = {1,2,4,5,7,8,10}
C' = {4,5,7,8,9,10}
A'nB'nC' = {5, 7}
(1b)
Cost of each premiere ticket = $18.50
At bulk purchase, cost of each = $80.00/50 = $16.00
Amount saved = $18.50 - $16.00
=$2.50
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11b) 8y = - 4x + 24
Y = - 4/8 x + 24/8
Y = - 1/2 x + 3
Gradient = m = - 1/2
:. Y- y1 = m(x-x)
Y- 12 = 1/2 (x + 8)
2(y-12) = 1 (x+8)
2y - 24 = -x-8
X + 2y - 24 + 8 = 0
X + 2y - 24 + 8 = 0
X + 2y - 16 = 0
Is the line above
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