Find the missing length indicated. Pls show your work

2*-7

Step-by-step explanation:

yan po yung sagot yung missing leanth

21

Step-by-step explanation:

The side opposite 6 in the small triangle is 2x-7-14 which is 2x - 21

Proportion

6/18 = (2X - 21)/(2x - 7)                       Cross Multiply

6*(2x - 7) = 18*(2x - 21)                        Divide both sides by 6

2x - 7 = 3*(2x - 21)                               Remove the brackets

2x - 7 = 6x - 63                                   Add 63 to both sides

2x - 7 + 63 = 6x

2x + 56 = 6x                                       Subtract 2x from both sides

56 = 4x                                               Divide by 4

56/4 = 4x/4

x = 14

Answer

2x - 7

2*14 - 7

28 - 7

2x - 7 = 21

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.

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