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3 years ago

Using Euler's formula, how many

Mathematics

2 answers:

WITCHER [35]3 years ago

3 0

Answer:

E = 18

Step-by-step explanation:

Euler's formula for polyhedra states

F + V = E + 2 ( F is faces, V is vertices, E is edges )

Here F = 8, V = 12 , then

8 + 12 = E + 2 , that is

20 = E + 2 ( subtract 2 from both sides )

18 = E

Then number of edges is 18

skad [1K]3 years ago

3 0

$\huge\boxed{\boxed{Hello\:there!}}$

Euler's Formula states that

F+V=E+2

We are given a polyhedron with 8 faces and 12 vertices.

Let's plug these numbers into the formula and then solve for E:

8+12=E+2

20=E+2

20-2=E

18=E

Therefore, the given polyhedron has 18 edges.

$\Large\boxed{\boxed{\mathrm{Hope\:it\:helps.\:Please\:mark\:Brainliest.}}}$

$\huge\bold{Good\:luck!}$

$\huge\mathfrak{LoveLastsAllEternity}$

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2 years ago

Read 2 more answers

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Step-by-step explanation:

Given values:

$38, 40, 41, 45, 48, 48, 50, 50, 51, 51, 52, 52, 53, \\\\$ $54, 55, 55, 55, 56, 56, 57, 59, 59, 59, 62, 62, 62, \\ 63, 64, 65,66, 66, 67, 67, 69, 69, 71, 77, 78, 79, 79$

Total staff=40

In point a:

To calculate the median number first we arrange the value into ascending order and then collect the even numbers of calls that were also made. Its average of the middle terms is thus the median.

The midterms =55 and 59 so,

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In point b:

First-quarter $Q_1 = \frac{1}{4} \text{number of 8th call}$

$=\frac{1}{4} \times 30 th \\\\= 7.5 th$

The first quarterlies are $7.5th \ \ that \ is = (7+0.5)th\ \ term$

therefore the multiply of 0.5 by calculating the difference of the 7th and 8th term are:

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In point c:

First decile $D_1 = \frac{1}{18} \text{number of 8th call}$

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