Given are the seven roads (say A, B, C, D, E, F, and G) that lead to the top of a hill. We need to select a road to reach the top and then it says to select different road to get back down.
First of all, we can select any one road from seven roads. So, we have 7 ways to go to the top.
After reaching the top, this first road gets eliminated from selection and now we have only Six roads to come downhill. So, we have 6 ways to get back down.
So, total number of ways = 7 × 6 = 42 ways.
So, there are 42 different ways are there to reach the top and to get back down, if the uphill and downhill roads are different.
The anwser is 1/4 or 25% or .25
Answer:
50 seconds.
Step-by-step explanation:
Hope this helps!
Answer:
A.(-2, 0)
C. (-1.4)
Step-by-step explanation:
we know that
If a point lie on the line, then the point must satisfy the equation of the line (makes the equation true)
we have

subtract 7 both sides


divide by 2 both sides

Substitute the value of x and the value of y of each point in the linear equation and analyze the result
<u><em>Verify each point</em></u>
case A) we have
(-2, 0)
For x=-2, y=0
substitute

---> is true
so
the point lie on the line
case B) we have
(1, 3)
For x=1, y=3
substitute

---> is not true
so
the point not lie on the line
case C) we have
(-1, 4)
For x=-1, y=4
substitute

---> is true
so
the point lie on the line
case D) we have
(1, -4)
For x=1, y=-4
substitute

---> is not true
so
the point not lie on the line
case E) we have
(0, -1)
For x=0, y=-1
substitute

---> is not true
so
the point not lie on the line