Lesson 7-3: Apply
OPEN ENDED Give an example of an angle for which the sine is negative and the tangent is positive.Writing in Math Use the information on page 796 to explain how you can model the position of riders on a skycoaste GET READY for the Lesson
A skycoaster consists of a large arch
from which two steel cables hang
and are attached to riders suited
together in a harness. A third cable,
coming from a larger tower behind
the arch, is attached with a ripcord.
Riders are hosted to the top of the
larger tower, pull the ripcord, and
then plunge toward Earth. They
swing through the arch, reaching
speeds of more than 60 miles per
hour. After the first several swings
of a certain skycoaster, the angle of
the riders from the center of the arch is given by 0 = 0.2 cos (1.6t),
where t is the time in seconds after leaving the bottom of their swing,
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