AB BC AC m A(3, 4), B(1, 1), C(5, 1)
A(4, 5), B(2, 1), C(7,3)
A(3,6), B(3,-2), C(-3,-2)

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s

c > -10.55

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

correct answer is c. just did it

step-by-step explanation: