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tatuchka [14]
3 years ago
13

Use Euler's formula to find the missing number.

Mathematics
2 answers:
irakobra [83]3 years ago
6 0
The answer is C 16 I believe
liraira [26]3 years ago
3 0

Answer: D. 18

Step-by-step explanation:

Euler's formula is Faces + Vertices = Edges + 2

Faces = Edges - vertices + 2

Faces = 39-23 + 2 = 18

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I think of a number. I multiply it by 7. I add 12. The result is 40. What is the number I am thinking of?​
julia-pushkina [17]
The number that you are thinking of is 4. To get this answer I did the opposite of how you received your answer.
40 - 12 = 28
28 ÷ 4 = 7
The number that you are thinking of is 4.
8 0
3 years ago
Choose the correct description of the graph of the inequality x - 3s 5.
padilas [110]

Answer:

x - 3 > = 5

x > = 5 + 3

x > = 8

closed circle on 8...because of the equal sign.....shaded to the right...because of the > sign.

Step-by-step explanation:

6 0
3 years ago
13<br> y <br> 3<br> Х<br> 4<br> What is y?
KonstantinChe [14]

Answer:

The Y Coordinate is always written second in an ordered pair of coordinates (x,y) such as (12,5). In this example, the value "5" is the Y Coordinate. Also called "Ordinate"i think

Step-by-step explanation:

6 0
3 years ago
(d) Given that n(§) = 96, n(A) = 50 and n(B) = 60. Find the maximum and minimum values for n(An B).
frez [133]

Step-by-step explanation:

the max. value is when the smaller set (A) is completely contained in the larger set (B).

then n(A n B) is n(A) = 50.

the set intersection between A and B cannot get bigger than that. or A gets bigger ...

after all, the intersection means it is a set of all elements that exist in BOTH sets.

but then there must be other elements besides A and B in the universal set too, because n(universal set) = 96, and n(A u B) would be only 60.

the min. value could be the empty set or 0. but because n(universal set) = 96, and n(A) + n(B) = 110 and larger than 96, it means that there have to be some shared elements. at least 110 - 96 = 14 elements.

in this case there cannot be other elements in the universal set than A and B. and n(universal set) = n(AuB) = 96.

3 0
1 year ago
Sam and Amelia make bean bags for a tossing game. Amelia makes a line plot to show the weight, in pounds, of the bean bags.
frosja888 [35]

Answer:

amelia

Step-by-step explanation.

Amelia is correct because she has the heviest bag

4 0
2 years ago
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