Answer:
86
Step-by-step explanation:
=> 
=> 
=> 
=> 
=> 86
Answer:
y=2x+0 or y=2x
Step-by-step explanation:
y=mx+b
m=2
b=0
Answer:
given: 300km in 6 hours
formula: a÷b=x
work: 300÷6=x
50= x
answer: the avrage
speed of the car is 50km an hour
Step-by-step explanation:
Answer: The answers are
(i) The slope of segments DE and AC is not 0.
(ii) The coordinates of D and E were found using the Midpoint Formula.
Step-by-step explanation: We can easily see in the proof that the co-ordinates of D and E were found using the mid-point formula, not distance between two points formula. So, this is the first flaw in the Gina's proof.
Also, we see that the slope of line DE and AC, both are same, not equal to 0 but is equal to

which is 0 only if 
So, this is the second mistake.
Thus, the statements that corrects the flaw in Gina's proof are
(i) The slope of segments DE and AC is not 0.
(ii) The coordinates of D and E were found using the Midpoint Formula.