Answer:
The guaranteed mileage should be 31800 miles.
Step-by-step explanation:
Consider the provided information.
It is given that the normally distributed with a mean of 40,000 miles and a standard deviation of 4,000 miles. Also the company desires that no more than 2 percent of the tires will fail to meet the guaranteed mileage.
That means the p < 0.02
Now with the help of the table the respective Z-score value of p < 0.02 is -2.05
From the provided information mean and standard deviation is given as 
Now use the formula: 
Substitute the respective values in the above formula.




Hence, the guaranteed mileage should be 31800 miles.
Answer:
Yes it is 5
Step-by-step explanation:
It is 5 because you divide 2 and 10 and it is 5
Answer:
9
Step-by-step explanation:
-15 - -14y = -9
two negatives (close together) makes a positive
-15y + 14y = -9
add like terms
-1y = -9
get y alone (divide whats in front of it) and do the same on the other side
-1y/-1 = -9/-1
if you divide two negatives it makes it positive so youll get 9
Answer:
sorry I don't understand, I'm unable to read Spanish
Let x be the number.
5 - 2x = 7
5 - 5 - 2x = 7 - 5
-2/-2x = 2/-2
x = -1
The number is -1.