Multiply. Simplify and leave the numerator and denominator in your answer in factored form.
? 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.A heat duct in the college library has a circular cross section with a radius of 4 inches and a length of 25 feet. How much paint (in square feet) is needed to paint the duct?
A. 314 ft2 B. 628 ft2 C. 26.2 ft2 D. 52.3 ft2
Mathematics
Provide an appropriate response.Starting with middle A, at a frequency of 437 cycles per second, find the frequency of the next octave of A in the circle of fifths.
A. 521 B. 27,968 C. 55,936 D. 36,708
Mathematics
Express the number in terms of i.
A. 3
i
B. 6i
C. 2
i
D. -2
i
Mathematics
Find the difference.- 
- 
A. - 
B. - 
C. 
D. 
Mathematics