i need help with A 4ᵗʰ grade class divided into seven groups for a game. Each group has the same number of students. What could be the total number of students in the class? so can you help

14, 21, or 28 would be the only answers I can think of

Step-by-step explanation:

7 teams of 2, 3, or 4 gives the answers

x=6 and x=3

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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.