# pre calc

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The minute hand of a clock is 7 inches long. How far does the tip move in 16 minutes?
a.56/15pi
b.8/105pi
c.4/105pi
d.28/15pi

• pre calc -

in 60 minutes, the minute hand moves 2π radians
in 16 minutes it moves 16(2π/60) or 8π/15 radians

arc = rĂ˜ = 7(8π/15) = 56π/15

looks like a)

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