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geniusboy [140]
2 years ago
7

Simplify the expression: -12 - 4x + 9 + -10 + 8x

Mathematics
2 answers:
beks73 [17]2 years ago
5 0

Answer:

4x - 13 there you go!!!

Step-by-step explanation:

Ann [662]2 years ago
4 0

Answer:

Step-by-step explanation:

4x-13

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With the help of the <em>area</em> formulae of rectangles and triangles and the concept of <em>surface</em> area, the <em>surface</em> area of the composite figure is equal to 276 square centimeters.

<h3>What is the surface area of a truncated prism?</h3>

The <em>surface</em> area of the <em>truncated</em> prism is the sum of the areas of its six faces, which are combinations of the areas of rectangles and <em>right</em> triangles. Then, we proceed to determine the <em>surface</em> area:

A = (12 cm) · (4 cm) + 2 · (3 cm) · (4 cm) + 2 · (12 cm) · (3 cm) + 2 · 0.5 · (12 cm) · (5 cm) + (5 cm) · (4 cm) + (13 cm) · (4 cm)

A = 48 cm² + 24 cm² + 72 cm² + 60 cm² + 20 cm² + 52 cm²

A = 276 cm²

With the help of the <em>area</em> formulae of rectangles and triangles and the concept of <em>surface</em> area, the <em>surface</em> area of the composite figure is equal to 276 square centimeters.

To learn more on surface areas: brainly.com/question/2835293

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7 0
9 months ago
38% of 1200 Otto middle school students are 6th how many auto students are sixth graders
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3 years ago
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