Evaluate and match each expression on the left to its value on the right, when x = 9 and y = 6. 12 - x
14
x + 3y
3
4y - 10
27

1/3xy 18

if you explain the the question more correctly i might be able to answer this better

step-by-step explanation:

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.

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.