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D. The experimental probability is greater than the theoretical probability.

Step-by-step explanation:

Experimental Probability

Sam rolled a 6 39/75 times

39/72 = 0.52 probability

Theoretical Probability

The likelihood of rolling a 6, in general, is 1/6, as a die has 6 sides, and a 6 is found on one of the six sides.

1/6 = 0.167 probability

52% experimental > 16.7% probability, thus the answer would be D.

step-by-step explanation:

abc

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.