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Nataly_w [17]
3 years ago
15

Solve for x in the equation x2 – 12х+ 36 = 90

Mathematics
1 answer:
Leviafan [203]3 years ago
5 0

Answer:

5

Step-by-step explanation:

90-36=54

54-24=30

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A container manufacturer plans to make rectangular boxes whose bottom and top measure x by 4x. The container must contain 8cm3.
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The most efficient measurements of the box should be 4cm long, 1cm wide and 2cm high so that its cost is $129.2

<h3>How to calculate the measures of the rectangular box?</h3>

To calculate the measurements of the rectangular box we must take into account the following condition:

  • Bottom and top measure x by 4x.

According to the above, we can establish that the most appropriate measurement for the bottom and top should be 1cm (width) × 4cm (length). Additionally we can establish that the height of the box would be 2cm.

<h3>How to find the volume of this box?</h3>

To find the volume of the box we must use the following formula:

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  • 2cm × 1cm × 4cm = 8cm³

<h3>What are the areas of this box?</h3>

The areas of this box are:

  • Bottom and top: 1cm × 4cm = 4cm²
  • Sides: 1cm × 2cm = 2cm²
  • Front and rear: 2cm × 4cm² = 8cm²

<h3>What is the price of this box?</h3>

The total price of this box is as follows:

Top and bottom:

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  • 8cm² × $4.90 = $39.2
  • $39.2 × 2 = $78.4

  • $78.4 + $19.6 + $31.2 = $129.2

Learn more about boxes in: brainly.com/question/23952628

#SPJ1

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