The domain of the following relation: r: {(-3,4), (5,0), (1,5), (2,8), (5,10)}

{-3,1,2,5}

Step-by-step explanation:

Given that a set contains an ordered pair (x,y) such that x = domain of the relation while y = range of the relation .

Here x can have two or more than two ranges which mean a value of x can have two or more than two images.

So the domain of the given relation R will contain the first elements from each ordered pair.

Therefore, the domain will be {-3, 5, 1, 2}.

(omitting one 5 since its occurring twice)

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

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