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Find the complement of the set given

Question

Not sure what to do here!
Find the complement of the set given that U =

{x | x  I and −3 ≤ x ≤ 7}. (Enter answers as a comma-separated list.)

{−3, 0, 4, 5, 7}

 
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Please help!!!

Question

Given n(J style=”color:rgb(0,0,0);”>) = 295, n(K) = 167 and n(J ∪ K) = 413, find n(J ∩ K). Please help!!!

 
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Determine whether the statement is true or false

Question

Determine whether the statement is true or false. Chose best answer.{ style=”color:#FF0000;”>1, 3, 7} = {1, 1, 3, 7, 7}
a. False. The sets do not have the same cardinality.
b. True. Both sets contain the same elements.
c. False. All elements in the first set should be duplicated in order for the sets to be equal.
d. False. Some elements of the first set are duplicated in the second set.

 
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How would you find the electricity costs at $0.13 per kWh

Question

How would you find the electricity costs at $0.13 per kWh of running the electricity all year?

 
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