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9. The diameter of a tire is 2.5 ft. Use this measurement to answer parts a and b. Show all work to receive full credit. a. Find the circumference of the tire. Round your answer to the nearest whole number. b. About how many times will the tire have to rotate to travel 1 mile? (1 mile = 5,280 ft)
plz help me out
tire is a circle right ?|dw:1463681896973:dw| whose diameter is 2.5ft radius is half of diameter r= d/2 what would be the radius ?
or you can use the formula \[\large\rm C=\pi d\] that would work too don't need to get the radius
substitute 2.5ft for d and then simplify
for part b\[\rm C \cdot \frac{1 mile}{5,280 ft}\]
convert ft to miles ^
oh I already got it right thx
alright good.
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