In the braces be low , list all the subsets of the set {7,6}

The subsets are

{7,6}

{7}

{6}

{ }

There are four subsets

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Explanation:

A subset is simply a set that contains one or more members of the original set. So all we do is list various ways to pick items from {7,6}. We could pick both items and simply write down the original set itself. Any set is a subset of itself.

Or we could pick one value from the set and have {7} or {6}. These sets are called singletons, as they contain one single value.

Finally, we could have a set with nothing inside it. We write this as { } which is a pair of curly braces with space between them to indicate "empty set". A special symbol for the empty set is

Note how the original set has n = 2 members. The rule is that there will be 2^n = 2^2 = 4 subsets. If the original set had say n = 3 members, then there would be 2^n = 2^3 = 8 different subsets. And so on. The collection of all the subsets possible is called a power set.

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk