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stepan [7]
2 years ago
5

1/2x + 7 = x + 13 solution

Mathematics
1 answer:
vaieri [72.5K]2 years ago
4 0

Answer:

-3

Step-by-step explanation:

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Mario’s company makes unusually shaped imitation gemstones. One gemstone has 14 faces and 10 vertices. How many edges does the g
Ivan
The gemstone has 22 edges.

We use Euler's formula on this:

F + V - E = 2

Substituting our information, we have:

14 + 10 - E = 2

Combining like terms, 
24 - E = 2

Subtract 24 from both sides:
24 - E - 24 = 2 - 24
-E = -22

Divide both sides by -1:
-E/-1 = -22/-1
E = 22
3 0
3 years ago
Thank you so much for your help
lana [24]

Answer:

1.1x

Step-by-step explanation:

that is the procedure above

4 0
2 years ago
Please help, any help would be appreciated.
k0ka [10]

Answer:

160,170 and 240,250

Step-by-step explanation:

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2 years ago
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Afina-wow [57]
We know the area of the middle rectangle is 48 (length * width). removing that rectangle leaves us with two semicircles. you can combine those semicircles to be the equivalent of one circle. the area for a circle is r^2 * pi. we know the diameter is 4 because that is where we cut the semicircles. radius is half the diameter, so r is 2. 2^2 is 4, 4* pi is 12.56. add 12.56 (area of semicircles) with 48 (area of rectangle) and we get 60.56
4 0
3 years ago
Simplify 2x+3y^2 -2(x-y2)
poizon [28]

Multiply the bracket by -2

2x+3y^2 -2(x-y2)

2x+3y^2-2x+2y^2

2x-2x+3y^2+2y^2- rearranging

3y^2+2y^2

5y^2

Answer: 5y^2

6 0
3 years ago
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