Use the following sets to answer the question. A={1,2,3,4,5}
B={5,6,7,8}
Which answer shows the union of sets A and B?

{1,2,3,4,6,7,8,9}
{1,2,3,4,5,6,7,8}
{2,4,8}
{5}

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation:

mean, 40.6

step-by-step explanation:

x= 3^y

step-by-step explanation:

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