The answer is 
This is the expression 57-8*sqrt(6) all over 15.
The steps on how to get this answer are shown below in the attached image.
3/4 x
÷ = ÷
1/4 1
(4) 1/4x = 3/4 (4)
1x=3
final answer: dan can paint 3 walls
Answer:
Scale factor = 4 and it represents an 'enlargement'.
Step-by-step explanation:
We are given a hexagon which is dilated to form the second hexagon.
Now, as the size of the original hexagon is 0.2 units and the size of the dilated hexagon is 0.8 units.
As we get that 0.2 × 4 = 0.8
Therefore. it can seen that the original hexagon is dilated by 4 units in order to obtain new hexagon.
Moreover, dilation refers to the transformation that changes the size of the image.
Now, as we are changing the size by a scale factor of 4. So, this dilation is increasing the size of the original hexagon.
Hence, this dilation represents an enlargement.
14 science fiction, 2 romance, 4 biography, 10 adventure...total of 30 books
P(biography) = biographies / total books = 4/30 which reduces to 2/15 <=