But if she went back to the ocean and back home 66 times why doesn't she have 66 time trials instead of only 7? anyways it wouldn't even be possible for her to have a goal of averaging 52 minutes. :/
Answer:
The minimum score an applicant must receive for admission is 392.
Step-by-step explanation:
Let the minimum score required be 'x₀'.
Given:
Mean score (μ) = 500
Standard deviation (σ) = 100
Percentage required for admission, P > 86% or 0.86
So, we are given the area under the normal distribution curve to the right of z-score which is 86%.
The z-score table gives the area left of the z-score value. So, we will find the z-score value for area 100 - 86 = 14% or 0.14
So, for value equal to 0.1401, the z-score = -1.08
Now, 
So, we find x₀ using the formula of z-score which is given as:

Therefore, the minimum score an applicant must receive for admission is 392.
Answer:
C) 
Step-by-step explanation:

Group the similar terms together:

Add/subtract the "c" variables:

Add/subtract the "d" variables:

The correct answer to your question is
x^2+(y+2)^2=4