Answer:

Step-by-step explanation:
Given
The above data
Required
Determine the expected value E(x)
E(x) is calculated as thus;

Where f(x) represents the total sale of each outcome;
For A:


For B:


For C:


Hence, E(x):


A rhombus is a shape that has all four sides equal, whether they be in the shape of a parallelogram, or a square, if it has all four sides equal length, it's a rhombus. The definition of a rectangle, is a shape that has four right angles. (90 degrees).
So, if a square has all four sides equal, and four right angles, it can be both a rhombus and a rectangle.
Not all rhombuses are squares, because not all have four right angles. Not all rectangles are squares, because they do not all have four equal sides. Not all rectangles are rhombuses because they do not have four equal sides.
But all squares are a rhombus and all squares are a rectangle.
iiii wish iiiis corrrrrrect
The tens digit is 8 more than the ones digit. There isn't any zeros.
The maximum digit is 9 because 10 would be 2 digits, 1 and 0.
So say the tens digits is 9.
9 _
The ones digit is 8 less so 9-8 = 1
9 1
There isn't any zeros which is correct.
The answer is 91.
We know that 16 cups are in 1 gallon
We also know that 10 servings = 2 cups
Now that means 80 servings = 1 gallon
That means we need 320 / 80=4
It is A 4 gallons
Hope this helps