Simplify.( 
- 3)2
A. 6 - 3
B. 12
C. 12 + 6
D. 12 - 6
Answer: D
Mathematics
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Evaluate by using polar coordinates.
A. 
B. 
C. 
D. 
Mathematics
Solve the given applied problems involving variation.The pitch P of a musical tone varies inversely as its wavelength W. One tone has a pitch of 479 vibrations per second and a wavelength of 8.8 ft. Find the wavelength of another tone that has a pitch of 492 vibrations per second.
A. 0.000037 ft B. 0.12 ft C. 26,780.5 ft D. 8.6 ft
Mathematics
Simplify. Assume that all variables represent positive real numbers.
- 
+ 
A. 
B. 
C. - 
D. 
Mathematics
Divide.
A. 1.31 B. 3.1 C. 13.1 D. 0.31
Mathematics