I You conduct a survey that asks 245 students in your school whether they have taken a Spanish or a French class. One hundred nine of the
students have taken a Spanish class, and 45 of those students have taken a French class. Eighty-two of the students have not taken a
Spanish or a French class. Organize the results in a two-way table. Include the marginal frequencies.
Spanish Class
Yes
No
Total
Yes
109
French
Class
No
Total

Step-by-step explanation:

Its easy bro just put on a table

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.