Maria and her friends went for a bike ride. The start and end times are shown below. How long did they ride? 2 hours 23 minutes Start End 12 12 11 1 hour 23 minutes 11 10 10 2 2 9 3 -9 3 TA 1 hour 37 minutes -00 4 8 7. 6 6 5 2 hours 37 minutes​

1 hour 37 minutes

Step-by-step explanation:

From the image attached, we can see the start and end time represented by the clock. To calculate the length of time that Maria and her friends rode, we just have to subtract the start time from the end time.

From the end time clock, we can see that the end time is 2:24, while from the start time clock, we can see that the start time is 12:47. Hence, the length of time they rode is:

Length of time for bike ride = 2:24 - 12:47 = 1 hour 37 minutes

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.

i think da answer is

d.square root of 3