Answer:
it should be 30 or something I'm pretty sure that's the answer
Answer:
475.
Step-by-step explanation:
We have been given that for a normal distribution with μ=500 and σ=100. We are asked to find the minimum score that is necessary to be in the top 60% of the distribution.
We will use z-score formula and normal distribution table to solve our given problem.

Top 60% means greater than 40%.
Let us find z-score corresponding to normal score to 40% or 0.40.
Using normal distribution table, we got a z-score of
.
Upon substituting our given values in z-score formula, we will get:





Therefore, the minimum score necessary to be in the top 60% of the distribution is 475.
Answer:
I think it would be the bottom left angle, x + 20 = 20x.
Why the others are smaller:
10x (x + 10)
12x (2x + 10)
10x (x + 10)
Step-by-step explanation:
The answer is 1800 you take .06 being the cost of every sq yard and multiply it by 300 being the amount of sq yards