7. 1.663 Which had the faster speed?
10. Driver A or Driver D
Car Racing Winners
Average Speed
Driver
(mph)
Driver A
145.155
Driver B 145.827
Driver C 147.956
Driver D
144.809
11. Driver C or Driver A
e
R 1.5
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sine

step-by-step explanation:

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.

35x 3= 105

step-by-step explanation:

35+35= 70   70 + 35= 105