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3 years ago

PLEASE HELP !!!!!!!!!!!

Mathematics

1 answer:

Phoenix [80]3 years ago

5 0

Polynomial :

${3x}^{2} - {5x}^{4} + 2x - 12$

${x}^{5} - {5x}^{4} + {4x}^{3} - {3x}^{2} + 2x - 1$

${x}^{3} - {7x}^{2} + 9x - {5x}^{4} - 20$
The rest are not polynomials.

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I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out !

~Zoey

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Answer:

Part 1) The surface that is shared by the two solids is the top of the cube that is the same that the square base of the pyramid

Part 2) The dimensions of this surface are 6 in x 6 in

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Step-by-step explanation:

The picture of the question in the attached figure

Part 1) Which surface is shared by the two solids?

we know that

The surface that is shared by the two solids is the top of the cube that is the same that the square base of the pyramid

Part 2) What are the dimensions of this surface?

The surface is a square with side length 6 inches

The dimensions of this surface are 6 in x 6 in

Part 3) what is the area molly needs to paint?

we know that

The area that Molly needs to paint is equal to the surface area of the cube plus the surface area of the pyramid minus two times the area of the surface that is shared by the two solids

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$SA=228\ in^2$

therefore

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