The Gross Domestic Product (GDP) of China was 4.3 trillion dollars in 2008, and has been growing by about 10.8% each year. Write an equation for the GDP of China, in trillions of dollars, t years after 2008.

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.

55% are girls and 45% are boys : ) hope this

step-by-step explanation:

he has now walked a total of what?

if i know what this is maybe i can

step-by-step explanation: