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lys-0071 [83]
3 years ago
8

Estimate the surface area of a cube with side length 9.9 in. A) 100 in2 Eliminate B) 400 in2 C) 600 in2 D) 1000 in2

Mathematics
1 answer:
Ray Of Light [21]3 years ago
6 0

Check the picture below.

\stackrel{\textit{area of all 6 faces}}{6(9.9\cdot 9.9)\implies 6(98.01)}\implies 588.06~~ \approx ~~600~in^2

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Step 2: Replace x with 3-4.5y

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Step 3: Solve for y

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Step 4: Replace y with 0

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Therefore, y=0 and x=3

   

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