A polyhedron is a 3D solid with many faces
From this picture you can calculate coordinates of triangles' vertices:
![A(-9,0),\ B(-6,-4),\ C(-3,0),\ J(8,0),\ G(5,4),\ H(2,0)](https://tex.z-dn.net/?f=A%28-9%2C0%29%2C%5C%20B%28-6%2C-4%29%2C%5C%20C%28-3%2C0%29%2C%5C%20J%288%2C0%29%2C%5C%20G%285%2C4%29%2C%5C%20H%282%2C0%29%20)
.
Since
you can conclude that points A, B, C are rotated by
![180^0](https://tex.z-dn.net/?f=180%5E0)
about the point (-0.5,0) to form points J, G, H, respectively.
Answer: A is correct choice.
1- The answer is that she wants the new time to be 32 minutes
Solution: The question asks that she wants to DECREASE by 20%
What you will do it convert 20% to a decimal (which is 0.20)
Then, you need to multiply the minutes by the decimal:
40 x 0.20 = 8 minutes
Now you know that 8 minutes will be 20% of 40 minutes, so you just subtract 8 from 40 UwU
2/7 x 1/3 = 2/ 21
In simplest form 2/21 = 2/21
Answer + 2/21
Answer:
A
Step-by-step explanation:
It is the only one that has both heads and tails equally on all options, instead of heads heads or tails tails. There aren't any fair coins that are like that
hope this helps :)