Which expression completes the table? Step
-2.5(4.3 - 8) + 1.2(5x - 1)
?
-10% + 6x + 20 - 1.2
= -4.1 + 18.8
Justification
Given
Distributive Property
Commutative Property of Addition
Addition of Like Terms
O A = 10% + 20 + 6x - 1.2
0 B = 10c + 20 + 6x – 1, 2
C. = 10% - 20 + 63 - 1.2
) D = -10% - 20 + 6% - 1.2

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.

yeah i know the problem you need. i am taking it right now. the answer is step 3

~mickey