Find the arc length parameter along the curve from the point where t = 0 by evaluating 
r(t) = (etcos t)i + (etsin t)j + 8etk
A. 
et - 
B. 
et - 
C. 
et - 
D. 
et - 
Answer: D
Mathematics
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Provide an appropriate response.True or false? If a > 0 and b > 0, 
A. True B. False
Mathematics
Solve.The height in meters of females in a certain ethnic group is approximated by h = 0.52 + 2 log (t/3) where t is the girl's age in years and 1 ? t ? 20. Estimate a girl's height at 4 years of age in this particular ethnic group. Round to the nearest hundredth.
A. 0.52 m B. 0.77 m C. 1.12 m D. 0.96 m
Mathematics
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = 8cos (?x), y = 8, x = -0.5, x = 0.5
A. 128?
B. 
?
C. 32?
D. 64?
Mathematics
Two triangles below are similar. Find missing length(s).
A. x = 14 B. x = 12 C. x = 6 D. x = 18
Mathematics