The circumference of a circle is C=2πR, where R is the radius of the circle and π≈3.14.
So if we open the circumference of the circle into a straight line segment, the length of this segment is C=2πR≈2*3.14*R=6.28R
4 rotations mean 4 circumferences that is 4 segments of length 6.28R,
which makes a linear distance of 4*6.28R=25.12R
i: the radius of the smaller wheel is R=r, thus it covers a distance of 25.12r feet
ii: the radius of the smaller wheel is R=2r, thus it covers a distance of 25.12*2r=50.24r (feet)
50.24r is twice 25.12r, thus the larger wheel traveled Twice the distance of the smaller one.
Answer: the larger covered twice the distance of the smaller.
Answer:
Step-by-step explanation:
2 feet 8 inches = 32 inches
4 yards = 144 inches
9 feet = 3 yards
2 yards and 5 inches= 77 inches
The slope is 5/2.
Explained : By using the rise over run method, find two points on the line (-4, -8) and (-2, -3). You can go up 5 from (-4, -8) and to the right twice taking you to (-2, -3). Convert to a fraction. 5 up, 2 right = 5/2.
Answer:
the common difference is -1.4
Step-by-step explanation:
From 8.6 to 6.2 is a decrease of 1.4.
From 6.2 to 3.8 is also a decrease of 1.4.
And so on.
So the common difference is -1.4.
