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CaHeK987 [17]
3 years ago
6

Which two statements are true

Mathematics
1 answer:
Inga [223]3 years ago
4 0
The third and fourth options.
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A convex polyhedron has (4a) faces, (6a) vertices, and (8a + 2) edges. What is the value of a?
Snowcat [4.5K]
V + F = E + 2
Plugging in the given values:-

6a + 4a =  8a + 2 + 2

10a - 8a = 4
2a = 4
a = 2
4 0
3 years ago
Read 2 more answers
ashur solves the following system of linear euations. -3a + 7b = -16. -9a + 5 b = 16 which statement is true about the solution
tiny-mole [99]

Answer:

a=-4, b=-4. (-4, -4).

Step-by-step explanation:

-3a+7b=-16

-9a+5b=16

-------------------

-3(-3a+7b)=-3(-16)

-9a+5b=16

---------------------------

9a-21b=48

-9a+5b=16

------------------

-16b=64

b=64/-16

b=-4

-3a+7(-4)=-16

-3a-28=-16

-3a=-16+28

-3a=12

a=12/-3

a=-4

6 0
4 years ago
What is the vertex of the function f(x) = x2 + 12x?
Ne4ueva [31]

Answer:

es la tercera amiga yo pienso

7 0
3 years ago
Ruby read 0.85. Of a book what fraction of the book does ruby have left to read? Write in simplest fom
lbvjy [14]
3/20 left to read. If you start 85/100 you take 100-85 and get 15, then you end up 15/100 which reduces to 3/20.
4 0
3 years ago
Taking away 5tens from 400gives
RideAnS [48]

Answer:

350

Step-by-step explanation:

Hope you have a great day and hope I helped

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