I don't understand what you are trying to ask if you post this in question form or add a question I can probably help you other than that I don't think anyone knows what you need help with, I'm sorry sweety

Answer : This is because when 5z minus 5z, it is nullified, with no way to determine the value of z. 5z - 5z = 0
That is why there is no solution for this equation.
Hope this helps. - M
Answer:
69.5%
Step-by-step explanation:
A feature of the normal distribution is that this is completely determined by its mean and standard deviation, therefore, if two normal curves have the same mean and standard deviation we can be sure that they are the same normal curve. Then, the probability of getting a value of the normally distributed variable between 6 and 8 is 0.695. In practice we can say that if we get a large sample of observations of the variable, then, the percentage of all possible observations of the variable that lie between 6 and 8 is 100(0.695)% = 69.5%.
Answer:
<u>20%</u>
Step-by-step explanation:
520,000/650,000 = 0.8
Sold for 80% of original price
Lost percent = 100% - 80%
20%