A wire 12 inches long is cut into two pieces. One piece is bent into a square and the other piece an equilateral triangle. Use exact values to answer the following questions. Let x be the side length of the square.
a) Express the total area A enclosed by both shapes as a function of x.
b) Find the domain of A.

20

step-by-step explanation:

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

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