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denpristay [2]
3 years ago
15

Um poliedro convexo tem 8 vertices e 10 a resta.quantas faces ele tem ?

Mathematics
1 answer:
Maurinko [17]3 years ago
5 0

Answer:

la respuesta es 15. Esto proviene de una de las ecuaciones de Euler. En 1750, señaló en una carta a Christian Goldbach que en un poliedro convexo

V - E + F = 2

donde V es el número de vértices, E es el número de aristas y F es el número de caras. En su pregunta, V = 10 y F = 8, por lo que la ecuación se convierte en

10 - E + 7 = 2

17 - E = 2

E = 16

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Find the acute angle between the two given lines<br><br> y=-2x and y=x
Marina CMI [18]

Answer:

θ ≈ 71.6°

Step-by-step explanation:

The angle between two lines with slopes m₁ and m₂ is:

tan θ = | (m₂ − m₁) / (1 + m₁m₂) |

Here, m₁ = -2 and m₂ = 1.

tan θ = | (1 − (-2)) / (1 + (-2)(1)) |

tan θ = | 3 / -1 |

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θ ≈ 71.6°

3 0
4 years ago
Give the equation of the line through the point ( – 15, - 1) with a slope of -3/5 in slope -intercept form
shutvik [7]

Answer:

-1 = (-3/5)-15 + b

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7 0
4 years ago
if one bucket + 5 jars equal one tub and three buckets plus two jars equal to tubs how many jars are there equal to one tub​
d1i1m1o1n [39]

Answer:

Simplify 4y + 7x = 2t and there you go that's your answer☺

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
PLEASE HELP ME
iogann1982 [59]

Since both are on the line y=10, the distance between the points is their difference in x-coordinates: 15 - (-30) = 45 units.

4 0
3 years ago
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Slope is 3, and (1,4) is on the line
Novosadov [1.4K]
The first step is since you know what the slope is, you can just plug that into the equation. We now have y=3x+b, b being the y intercept.
3 is equal to 3/1, and you can use that to find the Y intercept. Start at the point that they game you and go up 3 and over 1. But this makes you further away from the Y axis, so you want to do the opposite. Go down 3 and over 1.\
This makes you end up on the Y intercept at (0,1)
Making the equation y=3x+1
7 0
3 years ago
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