If we use a graphing tool, we can plot both graphs and find the solution quickly
<span>g(x)=x^2+2x-8</span> =7 =f(x)
The solutions are x1 =-5 , x2 = 3
<span>g(x)=x^2+2x-8</span> =7 =f(x)
The solutions are x1 =-5 , x2 = 3
A cube has a surface area of 24 ft squared .What is the length of on edge of the cube?
1 answer:
Surface area= 24 ft^2
A cube has 6 faces, so the surface area of 1 face would be 24/6, which is 4 ft^2.
The formula for the area of a square is l x w, but in a square both are equal so you're essentially squaring one side.
Therefore, the area of a square ( 4 ft^2 ) can be square-rooted in order to find the length of an edge.
= 2
Therefore, the length of 1 edge of the cube is 2 ft
(I think)
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