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lozanna [386]
2 years ago
9

If a cylinder has a radius of 4.5cm and a height of 8cm what’s the volume

Mathematics
1 answer:
kirill115 [55]2 years ago
3 0

Step-by-step explanation:

To find the volume of a cylinder the equation is

V = π×r×r×h

= 22÷7 × 4.5 × 4.5 × 8

Answer = 508.94

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Write a quadratic function in vertex form whose graph has the vertex (−5, −1) and passes through the point (−2, 2)
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This is your perfect answer

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3 years ago
The equation (x + 6)^2 + (y + 4)^2 = 36 models the position and range of the source of a radio signal. Describe the position of
Ilia_Sergeevich [38]

Answer:

position: (-6, -4)

range: 6

Step-by-step explanation:

The equation is that of a circle centered at (-6, -4) with a radius of √36 = 6. We presume that the "position" is that of the circle's center, and the "range" is the radius of the circle.

___

The standard form equation of a circle with center (h, k) and radius r is ...

(x -h)^2 +(y -k)^2 = r^2

Matching parts of the equation, we find ...

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7 0
3 years ago
How do you work this out?
Katarina [22]
Because ABCD is a rectangle, the length of CD is 12 cm.

We need to determine the length of DE.  If we can do that, then the sum of the lengths of CD and DE represents the unknown:  the length of CE.

To find the length of CE, we have to "solve" the upper triangle.

Here's an outline of what to do:

1.  Show that BC=AD and find the length.
2.  Note that angle CAD is 60 degrees.  Why?
3.  Note that angle EAD is 30 degrees.  Why?
4.  Find the length of ED
5.  Add ED and DC, that is, ED + 12 cm.  This is your answer.

Please ask questions if need be.
5 0
3 years ago
Write the equation of the circle that is tangent to the y-axis.<br> Its center is at (-3,5).
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Answer:

¿De que manera usted se informa a la hora de elegir un candidato presidencial? ENTRAR AL LINK es una encuesta de 1 pregunta ,GRACIAS

https://forms.gle/VqfekaGgk8cfJhPW9

Step-by-step explanation:

5 0
2 years ago
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