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3 years ago

What is the equation of the circle with center (-3.2,-2.1) and the radius 4.3?

2 answers:

5 0

If this makes sense lol... C = 2πr ≈ 2(3.14)(4.3) ≈ 27.02 m. An object travels in a circle of radius 4.3m at constant speed. It takes 1.4 seconds to go around once

loris [4]3 years ago

4 0

The equation of this cercle is (x + 3.2)² + (y + 2.1)² = 4.3²

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3 years ago

Read 2 more answers

Formula for the surface area of a cylinder, SA = 2ar2 + 2arh. Solve for h.

MakcuM [25]

Answer:

$h=\frac{SA-2\pi r^2}{2\pi r}$

Step-by-step explanation:

The formula for the surface area of a cylinder is:

$SA=2\pi r^2+2\pi rh$

And we want to solve for the height h.

First, subtract $2\pi r^2$ from both sides. This yields:

$2\pi rh=SA-2\pi r^2$

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3 years ago

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