The manufacturer of a laser printer reports the mean number of pages a cartridge will print before it needs replacing is 12,425.
the distribution of pages printed per cartridge closely follows the normal probability distribution and the standard deviation is 595 pages. the manufacturer wants to provide guidelines to potential customers as to how long they can expect a cartridge to last. how many pages should the manufacturer advertise for each cartridge if it wants to be correct 99 percent of the time?
1 answer:
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Answer:
The number is 11.
Step-by-step explanation:
Answer:
Option C is correct.
roots of the given equation ,
Step-by-step explanation:
Given the equation:
We can write this equation as:
A quadratic equation is in the form of ......[1] where a,b ,c are the coefficient and x is the variable,
the solution of the equation is given by;
On comparing given equation with equation [1] we get;
a = 3 , b = -4 and c =10
So, the solution of the given equation is given by;
or
or
[∴
Simplify:
therefore, the roots of the given equation are;