Answer:
Step-by-step explanation:
We can first solve for the face diagonal. That is 
. Notice this will form a right triangle with the vertical side. We get that the face diagonal = 
. Now, we can use Pythagorean theorem again to get the straw length:
where s = the straw length.
We can solve that s = 
Answer: I think b
Step-by-step explanation:
Answer:
a=14
Step-by-step explanation:
-a+28=14
So -a=-14
so a=14
8/20as well，since the number of green beads and yellow beads is the same，so equal probability
