Simplify the complex fraction.
A. 1
B. 
C. 1 - a2
D. 
Answer: B
Mathematics
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Use a spherical coordinate integral to find the volume of the given solid.the solid between the spheres 
and 
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
Find the median.
A. 31 B. 35 C. 32 D. 30.85
Mathematics
Solve the problem.At SuperStop, gasoline costs 
per gallon when you pay with a credit card, 
per gallon less when you pay with cash. How much do you save by filling up a 14-gallon tank if you are paying cash?
A. $15.82 B. $11.20 C. $16.94 D. $1.12
Mathematics
Write using radical notation. Then, simplify, if possible.165/4
A. 32 B. 512 C. 128 D. 256
Mathematics