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Sergeu [11.5K]
3 years ago
10

Using a vertical line trst how can u tell if a relation is a function.

Mathematics
1 answer:
OverLord2011 [107]3 years ago
7 0
It is a function if it only touches the vertical line once. 
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2 years ago
The roof of a tower in a castle is shaped like a cone. The height of the roof is 30 ft, and the radius of the base is 15 ft. Wha
xz_007 [3.2K]

Answer:

The area of the roof: ≈2287.44 ft^2, the lateral area of the roof:≈1580.58 ft^2

Step-by-step explanation:

The area of the roof is computed by the equation of the area of a cone:
A = πr(r + \sqrt{h^{2}+r^(2) })
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A = 15\pi (15 + \sqrt{30^{2} +15^{2}  } ) ≈ 2287.44 ft^2.

As I stated earlier, the lateral area of the roof can be computed:

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2 years ago
It’s on the picture .
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