Agroup of 120 seventh- and eighth-grade students were asked whether they participate in sports or in non–sports-related activities. the two-way table shows their answers. participation in sports or non-sportswhich statement is correct? a. twenty-nine seventh-grade students chose a sports activity. b. twenty-eight eighth-grade students chose a sports activity. c. twenty-four seventh-grade students chose a non-sports activity. d. thirty-nine eighth-grade students chose a non-sports activity.

answer: 10 meter

step-by-step explanation:

need details

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.

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy

its adding 5.5 each time

step-by-step explanation: