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BlackZzzverrR [31]
3 years ago
13

A local hockey rink is covered by a dome in the shape of a hemi-sphere (half sphere). if the floor of the arena has a diameter o

f 250 ft, what is the surface area of the domed roof to the nearest square foot?
Mathematics
1 answer:
8_murik_8 [283]3 years ago
5 0

The surface area of hemisphere is given by:

Surface Area = 2 \pi r^{2}

Where r is radius of hemisphere.

We are given diameter = 250 ft.

We know that radius = half of diameter.

Radius of dome = 1/2 (250) = 125 ft.

Now let us plug the value of radius in the formula,

Surface Area = 2 (3.14) (125)^{2}

Surface Area of dome = 98125 square foot.

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Answer:

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There is a line that includes the point (6,9) and has a slope of 3. What is its equation in
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y=3x-9

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What is the median of the following numbers? 1, 2, 2, 8, 9, 14
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Answer: 5

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Notice that our data set is already written from least to greatest.

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Notice that in this data set, there is no middle number directly because 2 and 8 fall directly in the middle. In this situation, we take the average of these two middle numbers and divide their sum by 2.

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Extra points!! A candle is 17 in tall after burning for 3 hours. After 5
PIT_PIT [208]

Answer:

1) h=-t+20  

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Step-by-step explanation:

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y=mx+b

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In this case:

y=h (The height of the candle in inches)

x=t (The time in hours)

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h=mt+b

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h=-t+20  

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4 0
4 years ago
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