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3 years ago

Identify the number of vertices, edges, and faces of the polyhedron. Use your results to verify Euler's formula.

Mathematics

1 answer:

strojnjashka [21]3 years ago

4 0

Answer:

The Last option

Step-by-step explanation:

We see this figure has eight faces, so we already know the answer choice is D, because answer choice D is the only option with 8 faces.

Now let's prove this using Euler's Formula

F = Faces

V = Vertices

E = Edges

We see 12 vertices, 8 faces, and 18 edges. Now plug in the formula.

F + V = E + 2

8 + 12 = 18 + 2

20 = 20

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I CAN'T FIND THE ANSWER AND I REALLY NEED HELP

kap26 [50]

Answer:

y = 5.5

Step-by-step explanation:

The total distance between the lines j and l is 10.

The total distance between the lines k and l is 9.

To find the distance between the lines j and k we can use the given information.

10 (distance between j and l) - 9 (distance between k and l) = 1 (the distance between the lines j and k).

So the distance between lines j and k is 1.

In the given picture the distance is shown as 2y-10.

This means 2y - 10 = 1

Now we need to solve this equation to find y.

2y - 10 = 1

2y = 1 + 10

2y = 11

y = 11/2

y = 5.5

(NOTE: We are not including 4 in the process of finding the value of y because this particular line is not similar to the line where y is )

3 0

3 years ago

Find the mean, median, mode, and range for each of the following sets of numbers

Sidana [21]

Answer:

The mean - $45\dfrac{2}{7};$ the median - 35, the mode - 27, the range - 47.

Step-by-step explanation:

Arrange the set of data (31,74,27,58,65,27,35) in ascending order:

27, 27, 31, 35, 58, 65, 74.

The mean is the usual average, so add aal numbers and then divide by the number of numbers:

$\dfrac{27+27+31+35+58+65+74}{7}=\dfrac{317}{7}=45\dfrac{2}{7}.$

The median is the middle value. The middle value in the row 27, 27, 31, 35, 58, 65, 74 is 35.

The mode is the number that is repeated more often than any other, so 27 is the mode.

The largest value in the set is 74, and the smallest is 27, so the range is 74 – 27 = 47.

8 0

3 years ago

I saved $360 for one year.the bank paid me 20% interest.how much do i now have

Ann [662]

You have 360+360*20%=360+360*20/100=360+72
So you have 432

4 0

3 years ago

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Round 89972 to 3 significant figures

Lena [83]

90000 is the significant figures

7 0

4 years ago

What’s 2x+4 equal because I’ve been thinking what it was

irga5000 [103]

Hope this will help u....

3 0

4 years ago

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