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Lyrx [107]
2 years ago
6

Pleaseeee help me!!!

Mathematics
1 answer:
irina1246 [14]2 years ago
3 0

Answer:

i have no idea just letting you know

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Using Euler’s formula, how many edges does a polyhedron with 20 faces and 12 vertices have?
astra-53 [7]

Euler's formula for a polyhedron is given by:

\begin{gathered} F+V=E+2 \\ \text{where,} \\ F=\text{faces} \\ V=\text{vertices} \\ E=\text{edges} \end{gathered}

Make E, the subject of the formula:

\begin{gathered} F+V=E+2 \\ E=F+V-2 \end{gathered}

Put F = 20, V = 12, to obtain E,

\begin{gathered} E=20+12-2 \\ E=30 \end{gathered}

Therefore, there are 30 edges

3 0
10 months ago
Hugo is Serving fruit sure but at his party he has 1 gallon of fruit sorbet deserve to 32 friends if each person receives the sa
Ierofanga [76]

Answer:

1/2 cup per friend

Step-by-step explanation:

He has 1 gallon of fruit sorbet to serve to 32 friends

Note that:

1 US gallon of water (gal) = 16.00 US cups of water (cup)

16 cups/1 gallon x 1 gallon/32 friends  

1/2 cup per friend

4 0
2 years ago
Read 2 more answers
The correct and best answer will be marked as brainiest
marta [7]

Answer:

x=10

m=3

Step-by-step explanation:

The angles are the same since the sides are the same length (isosceles triangle)

55 = 5x+5

Subtract 5

55-5 =5x+5-5

50 = 5x

Divide by 5

50/5 = 5x/5

10=x

The altitude is a perpendicular bisector so

5m-3 = 2m+6

Subtract 2m from each side

5m-3-2m = 2m+6-2m

3m-3 = 6

Add 3 to each side

3m-3 +3 =6+3

3m =9

Divide by 3

3m/3 = 9/3

m =3

8 0
3 years ago
I need two equations to use elimination but I don't know what equations to use.
lyudmila [28]
2x+3y=160
-2x+7y=25 I hope that helps!!
7 0
2 years ago
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Write the ratio 2/7 to 4/5 as a fraction in simplest form
laiz [17]
I’m gonna say that the answer is 5: 14
4 0
3 years ago
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