90 inches 18 times 5 is 90 and 30 times 3 is 90 so the lowest point which they will be at the height is 90 inches
The first equation will turn into -18x -6y = -18, and the second equation will turn into 14x + 6y = 18. The y terms will cancel out when you add the equations together.
The correct answer is C. 1.5
You can find this answer by using any of the points on the graph and putting them into the given equation. Then you can solve for the constant. For the purpose of this example, we will use (10, 15)
Height = Constant * Width ---> Plug in known values.
15 = Constant * 10 ----> Divide both sides by 10
1.5 = Constant
This will work with whatever numbers you use from the graph. Although this graph does not have any others to really choose from.
Given that the sample mean is μ=74 and sample standard deviation σₓ=
.
Thge Z- score is 
.
Now we use the Z-score to calculate the required probability.
Refer to standard normal distribution table.
The required probability is
