Step-by-step explanation:
As all sides of the given triangle is equal
it is an equilateral triangle.
In an equilateral triangle measure of all angles id 60. Therefore 5y + 10 = 60
y = 10
By using the given table, we can see that the expected value is 20.97 AED.
<h3>
How to find the expected value?</h3>
The expected value is given by the sum between the products between the value of each outcome and the probability of said outcome.
Then, by using the table, we can write the expected value as:

Then we can see that the correct option is C, the expected value is 20.97 AED.
If you want to learn more about expected value:
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Answer:
its a rectangle
Step-by-step explanation:
how to explain this
Answer:
x = (-12/7 , 0)
y= (0,4)
Step-by-step explanation:
Plug y=0 into the equation and solve the resulting equation 7x=−12 for x
7x = -12
/7 /7
x = -12/7 and y =0
Plug x=0 into the equation and solve the resulting equation −3y=−12 for y
-3y = -12
/-3 -3
Y = 4 and X = 0