Determine the symmetries of the curve.r2 = -5 cos 5?
A. Origin only
B. No symmetry
C. x-axis, y-axis, origin
D. x-axis only
Answer: C
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (1, 3, 2) for 
+ 
+ 
= 0.
A. - 
B. 
C. - 
D. 
Answer true or false.{16 }? {15, 13, 12, ..., 1}
A. True B. False
Solve the variation problem.The intensity of a radio signal from a radio station varies inversely as the square of the distance from the station. If the intensity is 8000 units at a distance of 2 miles, what will it be at a distance of 13 miles? Round to the nearest unit.
A. 215 units B. 153 units C. 189 units D. 172 units
Find an equation of the line that contains the given pair of points. Write the equation in the form y = mx + b.(3, 2) and (3, -9)
A. y = 3 B. y = 2 C. x = -9 D. x = 3