jenna’s method: mia’s method:
5(30 + 4) 5(30 + 4)
(5)(30) + (5)(4) 5(34) = 170
150 + 20 = 170

explain why both jenna and mia arrived at the same answer and the advantage of one method over the other.

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.

the first one

step-by-step explanation:

just id the test.

i believe b is the answer