8. Among the 500 freshmen attending a certain campus of the University of "Upperland", 80 own cars, 140 are from another island, and 50 of the other island students own cars. If
one of these students is selected(with equal probabilities) calculate:
i) the probability of getting an other-island student without a car,
ii) the probability of getting a local student with a car;
iii) the probability of getting an other-island student with a car.

correct answer is option b.

step-by-step explanation:

the true statement about geometric figure is option b that is one line can be drawn through all three points.

if three points are on the same plane, they can be connected by a line.

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.

c

step-by-step explanation: