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just olya [345]
4 years ago
14

Help me please!!!!!!!!​

Mathematics
1 answer:
zloy xaker [14]4 years ago
7 0

Answer:

1. 4x^2 - x + 1.5

Step-by-step explanation:

1. The prism has 6 surface faces. 2 of the surfaces are marked. The third is not. The surface area of the prism is given. Subtract the areas you know from the total surface area and divide it by 2. The result is the area of the last surface face.

18x^2+12x+22 -(8x^2+10x+17) - (2x^2+4x+2)\\18x^2 + 12x + 22 -8x^2 -10x - 17 - 2x^2 - 4x -2\\8x^2 - 2x + 3

Divide this in 2.

The area of the unknown face is 4x^2 - x + 1.5

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3 years ago
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Answer:

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Step-by-step explanation:

Use the distributive property. The factor outside parentheses multiplies each term inside parentheses.

__

<h3>5.</h3>

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<h3>6.</h3>

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Step-by-step explanation:

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