Answer:
1,495
Step-by-step explanation:
16,400
- 1,500
+ 50
--------------
14,950
14,950/10
This problem is about the difference between distance and displacement.
The distance is how many kilometers has the car covered, the displacement is how far from the original point is the car now, and does not depend on the path followed, but it is the shortest path that connects two points.
a) In this part, they ask you for the distance. From the southernmost to the northernmost point of the circumference, the car has traveled half of the circumference, therefore:
distance = circumference ÷ 2 = 2.7km ÷ 2 = 1.35km
b) In this part, you are asked for the displacement, which in this case is the diameter of the circumference:
displacement = diameter = circumference ÷ π = 2.7km ÷ 3.14 = 0.86km = 860m
Answer:
Function 1: Not a function
Function 2: Function
Step-by-step explanation:
Functions are relations between two numbers, each ordered pair is associated with <em>only one</em> value from the second set of numbers.
So x can have the same values but y can only be used <em>once </em>per value.
So the first function uses each y twice meaning it is not a function, but function 2 uses each y only once so it is a function.
