A theater hall has n rows of seats. The first row has 25 seats, the second row has 33 seats, and the third row has 41 seats If the same pattern continues, which expression represents the number of seats in the nTh
row of the theater hall?

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.

can you put the picture up?

step-by-step explanation:

answer is  

c.

36

step-by-step explanation: