Answer:
The number of rotations completed by tire = 500.
Step-by-step explanation:
The diameter of the tire of toy car = 8 cm
Now, DIAMETER = 2 x RADIUS
So, radius of the tire = D/2 = 8/2 = 4 cm
Now, Circumference of the Circle = 2πr
= 2 x 3.14 x 4 = 25.12 cm
Now,
=
The number of rotations completed by circle = 500.
Answer:
D) y = 3x-2
Step-by-step explanation:
The y-intercept is (0,-2). This means that in y-mx+b, b is going to by -2. We know the slop is 3 because if I choose 2 points and move ONE unit to the right, it is increasing by 3. Also, you can do y1-y2/x1-x2, or y2-y1/x2-x1.
Please tell me if this is wrong and hope this helps :)