Answer;
The generator was not fair.
Explanation;
The number generator is not fair. This is because the correct percentage of black socks was not chosen at all.
If the two diagonals are
and
, the are of the rhombus is

So, in your case, the area is

The other options are wrong because:
- option A doens't divide by 2, thus getting twice the area of the rhombus
- option B summed the diagonals instead of multiplying them
- option D took the difference of the diagonals.
Consider the following short explanation.
Answer: a1=15; d= -8.
Answer:4/10
Step-by-step explanation:4 shaded in 10 in all
4 out of 10 are shaded = 4/10
I got that the area of the parallelogram is 15.72