Find the rectangular coordinates for the point for which the polar coordinates are given.
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Evaluate 
at t = 3 for the function w = exyz2; x = t, y = t, z = 
.
A. 
e
B. 0
C. - 
e
D. 
Provide an appropriate response.What are the most pleasing combinations of notes?
A. consonant tones B. fourths C. fifths D. first harmonics
Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = (-2x - 10y)5
A. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 
B. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
c ? 0
C. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
D. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 
c ? 0
Solve the problem.The pitch P of a musical tone varies inversely as its wavelength W. One tone has a pitch of 464 vibrations per second and a wavelength of 18.1 ft. Find the wavelength of another tone that has a pitch of 447 vibrations per second.
A. 0.000087 ft B. 11,459 ft C. 0.05 ft D. 18.8 ft