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earnstyle [38]
3 years ago
6

How many edges does a decagonal pyramid have

Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
3 0

In geometry, the decagonal prism is the eighth in the infinite set of prisms, formed by ten square side faces and two regular decagon caps. With twelve faces, it is one of many nonregular dodecahedra. The decagonal prism has 12 faces, 30 edges, and 20 vertices.
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You have 15 yards of ribbon for your gift boxes. Each box gets the same amount of ribbon. How much ribbon will each of your 20 g
DerKrebs [107]
15/20 = 0.75

Each of the gift boxes will get 3/4 yard of ribbon. (.75)
5 0
3 years ago
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what is the equation in point-slope form of the line that passes through the point (-2,10) and has slope -4
Daniel [21]
-3 8 is your answer
7 0
3 years ago
What will be the unit digit of the square of 7992​
Alina [70]

Answer:

4

Step-by-step explanation:

Here you need not completely solve 7992 squared. You can just take the last digit which in this case is 2 and solve for the square of that digit. 2 x 2 = 4. Now if it was a bigger digit which would result in a two digit number when squared you would take the last digit of that number. But, we don't need to do that here since 2 squared is 4.

7 0
3 years ago
−2(−1 1/4) <br> in simplest form
jolli1 [7]

Answer:

11/4 is your answer.

Step-by-step explanation:

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6 0
4 years ago
Read 2 more answers
3. Factor.
sleet_krkn [62]
It seems that some the work is already here, but I'd be glad to!! So for #3 which is 9x^2+15x, we can factor out both a 3 and an x (3x) so we know that 3x * 3x =9x^2 and 3x * 5 = 15x so once we take the 3x out of the equation, we are left with 3x(3x+5) and that's as far as you can factor.
For #4, we see that the common factor is 10m because 10m * 2n = 20mn and 10m * 3 = 30m so once we take 10m out of the original, it becomes 10m(2n-3)
For #5, this one the common factor is 4xy because 4xy * 2xy=8x^2y^2 and 4xy*x= 4x^2y and 4xy*3=12xy so once we take the 4xy out of the equation, it becomes 4xy(2xy-x-3)
Hope this helps!
5 0
3 years ago
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