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Iteru [2.4K]
3 years ago
6

What is the distance between (-1,-2) and (8,10)

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
3 0

Answer:

x1 = 2, x2 =-8

y1=-2, y2 =-2

y2-y1 = |-2+2| =0

x2-x1= |-8-2|= 10

So distance is 10 units

Step-by-step explanation:

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Surface area of a sphere is 615.752 m2, what is the volume of the sphere?
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B

the volume (V) of a sphere = \frac{4}{3} πr³

We require to know the radius r to calculate the volume

using surface area of a sphere = 4πr² = 615.752

divide both sides by 4π

r² = \frac{615.752}{12.56} = 49.0248...

take the square root of both sides

r = \sqrt{49.0248..} ≈ 7, hence

V= \frac{4}{3} × π × 7³ = 1436.76 m³ → B



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4 years ago
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8 0
3 years ago
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3 years ago
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