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Andre45 [30]
2 years ago
7

Describe the faces, edges, verticals of each three dimensional figure. Then identify it.

Mathematics
1 answer:
EastWind [94]2 years ago
6 0

When you have to describe a 3D shape you have to keep the following definitions in mind:

<em>1. The face of a 3D shape is a flat surface.</em>

The shape on the picture has 3 rectangular faces and 2 triangular faces, a total of 5 faces.

<em />

<em>2. The edge is where two faces meet.</em>

For the shape on the picture, there are 3 edges, where the rectangular faces meet each other, and then three edges where the rectangular faces meet each of the triangular faces, this shape has a total of 9 edges.

<em>3. The vertex is a corner, where the edges meet.</em>

There are three vertices on each end of the shape, so it has a total of 6 vertices.

A shape that has 5 faces, 9 edges, and 6 vertices is a triangular prism.

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Answer:

The value is  \r p  =  2.9\%

Step-by-step explanation:

From the question we are told that

   The  number of singers is  N  =  1542

   The  sample  size is  n  =  650

    The  number the number of singers who are professional is k =  19

The  proportion of professional singers is mathematically represented as

       p  =  \frac{k}{n}

=>      p  =  \frac{19}{650}

=>    p  =  0.029

The  percentage estimate of singers who are professional is

      \r p  =  100 * 0.029

       \r p  =  2.9\%

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Solve the formula c = pi d for d
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Answer:

B

Step-by-step explanation:

We want to solve for d.

Our given equation is C = πd, where π and d are multiplied together.

In order to solve for d, we need to isolate it; in other words, we need to move the π to the left side with C. To do so, we must "undo" the multiplication; and what's the "undo" for multiplication? It's just division.

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<em>~ an aesthetics lover</em>

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