The roof of a high rise is in the shape of an isosceles triangle with a base of 89 feet. the perimeter of the roof is 281 feet. how long is each of the equal sides of the roof?

Each of the equal sides of the roof is 96 ft long

Explanation:

Let the length of each of equal sides of given isosceles triangle be x, we know that perimeter of a triangle is equal to sum of sides of the triangle, we are given the base side to be equal to 89 feet and perimeter of the triangle equal to 281 feet.

so we can say that x + x + 89 =281 feet.

=> 2 x + 89 = 281 feet

=> 2 x = 192

=> x = 96

So, each of the equal sides is equal to 96 feet.

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: