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Firdavs [7]
3 years ago
15

it is recommended that one fire extinguisher be available for every 6000 square feet in a building. write and solve an equation

to determine the number of fire extinguishers needed for a building that has 135,000 square feet
Mathematics
1 answer:
Leviafan [203]3 years ago
3 0
135000/6000=X
22.5=X

So this building would need 23 fire extinguishers <span />
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A rectangular storage container with an open top is to have a volume of 10 m3. the length of this base is twice the width. mater
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Refer to the diagram shown below.

The volume of the container is 10 m³, therefore
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The cost is $10 per m², therefore the cost of the base is
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The area of the sides is
2hx + 2(2xh) = 6hx = 6x*(5/x²) = 30/x m²
The cost is $6 per m², therefore the cost of the sides is
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The total cost is
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The minimum cost is determined by C' = 0.
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The second derivative of C is
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C''(1.651) = 120 >0, so x = 1.651 m yields the minimum cost.

The total cost is
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Answer: $163.54

7 0
3 years ago
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Answer:

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