Let ss be the universal set, where:
s={1,2,,19,20}s={1,2,,19,20}
let sets aa and bb be subsets of ss, where:
set a={1,2,4,5,8,9,11,12,14,15,17,18,19 }a={1,2,4,5,8,9,11,12,14,15,17,18,1 9}
set b={2,3,8,9,12,18,19}b={2,3,8,9,12,1 8,19}
find the following:
list the elements in the set (a∪ba∪b):
(a∪b)(a∪b) = { }
enter the elements as a list, separated by commas. if the result is the empty set, enter dne
list the elements in the set (a∩ba∩b):
(a∩b)(a∩b) = { }
enter the elements as a list, separated by commas. if the result is the empty set, enter dne
you may want to draw a venn diagram to answer this question.

1) A∪B={1,2,3,4,5,8,9,11,12,14,15,17,18,19}

2) A∩B = { 2,3,8,9,12,18,19}

Step-by-step explanation:

Since we have given that

A={1,2,4,5,8,9,11,12,14,15,17,18,19}

B={2,3,8,9,12,18,19}

So, we need to find the union of above sets and intersection of above sets.

Since union is the collection of all elements either in A or in B.

So, it becomes,

A∪B={1,2,3,4,5,8,9,11,12,14,15,17,18,19}

And intersection is the common element both in A and B.

A∩B = { 2,3,8,9,12,18,19}

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

my guess is

step-by-step explanation: