So each 1 revolution it travels the distance around the rim of the wheele aka circumference
circumference=pi times diameter
diameter=21
circunference=pi times 21 or 21pi
so distance=number of revolutions times circunference
number of revolutions=3
subsitute
distance=3 times 21pi
distance=63pi
answer is 63pi
or aprox pi to 3.14 and do 63 times 3.14=197.82
aprox 197.82 inches
Answer:
Train A = 466
Train B = 60
Step-by-step explanation:
Answer:
The surface area of the structure is 
Step-by-step explanation:
we know that
The surface area of a sphere is equal to

In this problem we have
-----The radius is half the diameter
substitute


Step-by-step explanation:
To find the slope between two given points you use the equation:

(8,10) are 
(16,24) are 
After that you just plug in:


Simplify:
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Answer:
The slope is
for #1
Answer : 125
explain: none