Find the Jacobian 
or 
(as appropriate) using the given equations.
A. 35
B. 5
C. -5
D. -35
Answer: B
Mathematics
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Solve. Round to the nearest tenth.One end guy wire is attached to the top of a 20-foot pole and the other end is anchored into the ground 15 feet from the base of the pole. Find the length of the guy wire.
15 feet
A. 25 ft B. 24.2 ft C. 35.8 ft D. 35 ft
Mathematics
Solve the radical equation, and check all proposed solutions.
= 1 + 
A. {0, 81}
B. {0, 121}
C. {0, 49}
D. 
Mathematics
Solve the problem.Suppose that the population of a town is given by 
,where t is the time in years after 1980 and P is the population of the town in thousands. Find P'(t).
A. P'(t) = 
B. P'(t) = 
C. P'(t) = 
D. P'(t) = 
Mathematics
Graph the pair of parametric equations with the aid of a graphing calculator.x = 6 cos t + 2 cos 3t, y = 6 sin t - 2 sin3t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Mathematics