Agroup of friends wanted to compare their average running speeds. they recorded the distance and amount of time each person ran one saturday morning.
select all the runners whose speeds are in a proportional relationship with each other.

you are saying it as if a fact, not a question, but yes, you would be correct? ; )

step-by-step explanation:

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8

i think that you should ask google for the answer to that problem because if we don't know it google does

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.