Answer:17 5/6
Step-by-step explanation:
Answer:
10 1/6
Step-by-step explanation:
first get 8 3/4 to a common denominator
8 3/4 *3/3= 8 9/12
8 9/12+ 1 5/12=9 14/12= 10 2/12= 10 1/6
Given:-

To find:-
Wheather the given sides form a valid triangle.
So now let,

To check we use the condition,

Substituting the values we get,

In the above condition 12+7>20 is wrong.
So the condition fails and the given sides doesnt form a triangle.
18 marbles
1 blue
8 white
9 red
Yes its true. When you look at the word vocaubulary for this qustion you see random and cahnce. These two words are linked closley together as getting something random occurs by chance. Hope I helped!!! :)