Answer: <u><em>B: symmetric property </em></u>
Reflexive property states that for every real number x, x = x.
symmetric property states that for all real numbers x and y, if x = y then y = x.
associative property states that you can add or multiply regardless of how the numbers are grouped. =(like adding/multiplying like terms.
Transitive property states that for all real numbers x,y, and z, if x = y and y = z then x = z.
Choice 4 is correct ... r = the square root of area over pi
From the given question:

The probability of a normally distributed data between two values (a, b) is given by:

Thus,
To answer this problem you have to use a ratio, if it begins with 8:500, multiply 40 or 20,000/500 on both sides to get 320:20,000
Answer:
Drawing a picture = 1 and 2
Making a Table = 5 and 8
Working Backwards = 3 and 4
Looking for a Pattern =6 and 7
Step-by-step explanation: