Without that value, we can't solve your problem, unless you are looking for an algebraic equation.
Answer:
2.5 right?
Warning: Answer may be wrong. I don`t know, it`s 11 A.M so please forgive me.
Answer:

Step-by-step explanation:
probability= <u>no of possible outcom</u><u>e</u>
total outcome
therefore p(1)=

N. B, a dice has 6faces so 2dice has 12 faces
Given:
Base length of triangle = 10 units
Height of triangle =
units
Length of hypotenuse of triangle = 12 units
To find:
Exact value of Cos A
Steps:
The cosine of any angle is equal to the length of the adjacent side by the length of the hypotenuse side.
So,
Cos A = 
Cos A = 
Cos A = 0.833
Therefore, the exact value of cos A is 0.833.
Happy to help :)
If u need any help, feel free to ask
8a+4s=840
a=s+30
8(s+30)+4s=840
12s+240=840
12s=600
s=50
A=s+30
a=50+30
a=80
The drama play sold 80 adult tickets