A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 33000 miles and a standard deviation 2800of miles. He wants to give a guarantee for free replacement of tires that don't wear well. How should he word his guarantee if he is willing to replace approximately 10% of the tires?

the answer is stop cheating on things stoopid

step-by-step explanation:

im eatin up the 44

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.