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NNADVOKAT [17]
3 years ago
8

How many edges does a polyhedron with 28 faces and 40 vertices have calculator?

Mathematics
2 answers:
kirill [66]3 years ago
7 0
Answer: 66

Explanation:

Faces + Vertices  - Edge  = 2
28 + 40 - Edge = 2
Edge = 28 + 40 - 2
Edge = 66


emmasim [6.3K]3 years ago
6 0
Hey user!

your answer is here..

we know about EULER'S FORMULA, it is a formula used to verify a polyhedron or to calculate the number of faces, vertices or edges.

Euler's formula = F + V - E = 2

given :-

faces = 28, verticies = 50 and edge = ?

we know that F + V - E = 2

therefore 28 + 40 - E = 2

==> 68 - E = 2

==> - E = 2 - 68

==> - E = - 66

==> E = 66

hence, the number of edges of the polyhedron is 66.

cheers!!
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The volume of a rectangular prism is 72 cubic centimeters. The prism is 2 centimeters wide and 4 centimeters high. What is the l
skelet666 [1.2K]

Answer:

The length of prism is  <u>9 centimetres</u>.

Step-by-step explanation:

Given:

The volume of a rectangular prism is 72 cubic centimeters.

The prism is 2 centimeters wide and 4 centimeters high.

Now, to find the length of prism:

Let the length be l.

Width = 2 centimeters.

Height = 4 centimeters.

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So, putting the formula to get the length of prism:

Volume = length\times width\times height

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72=l\times 8

Dividing both sides by 8 we get:

9=l

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3 years ago
A grocery store recently sold 12 cans of soup, 6 of which were black bean soup. Based on experimental probability, how many of t
gladu [14]

Answer:

10

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4 0
3 years ago
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The 40th parallel of north latitude runs across the United States through Philadelphia, Indianapolis, and Denver. At this latitu
Ronch [10]

Answer:

793.25 mi/hr

Step-by-step explanation:

Given that:

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We are  to determine the How fast in miles per hour would the jet have to travel west at the 40th parallel for this to happen.

NOW;

Distance s is expressed by the relation

s = rθ

s = 3030(\frac{\pi}{12} )

s = 793.25

The speed which depicts how fast in miles per hour the jet would have traveled is :

speed (v) = \frac{s}{t}

v = \frac{793.25}{1}

v = 793.25 mi/hr

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3 years ago
Lucy plans to spend between $50 and $60, inclusive, on packages of beads and packages of charms. If she buys 5 packages of beads
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She can buy maximum of 5 packages while staying within her budget.

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Maximum spending limit = $60.

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Let the number of packages of beads bought be x.

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Learn more about solving inequalities here:

brainly.com/question/12189350?referrer=searchResults

7 0
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She shared 2/3 of her cupcakes


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