Find the length of the curve.The curve r = 3
, 0 ? ? ? 
A. 
(? + 2)
B. 3(? + ln(? + 
))
C. 
?
D. 2?
Answer: C
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What will be an ideal response?
Solve the problem.A plane is heading due south with an airspeed of 282 mph. A wind from a direction of 50° is blowing at 16 mph. Find the bearing of the plane.
A. 88° B. 177° C. 93° D. 182°
A railroad track has an angle of elevation of 7.0 o. What is the difference in height (in feet) of two points on the track 1.00 mi apart? Round your answer to the appropriate number of significant digits.
A. 651 ft B. 665 ft C. 664 ft D. 648 ft E. 669 ft
Provide an appropriate response.Does the graph of f(x) = 
have a vertical tangent at the origin? Give reasons for your answer.
What will be an ideal response?