Perform the indicated operation. Assume that all variables are nonnegative.(
+ 
)(
- 
)
A. a - b
B. a - 2
+ b
C. a + b
D. a + 2
- b
Answer: A
Mathematics
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Use spherical coordinates to find the volume of the indicated region.the region enclosed by the sphere 
and the cylinder 
A. 
(3? - 4)
B. 
(3? - 4)
C. 
(3? - 4)
D. 
(3? - 4)
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Divide.266.48 ÷ 3 Round to the nearest tenth.
A. 88.9 B. 8882.6 C. 88.83 D. 88.8
Mathematics
Perform the indicated operation and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Solve.A number decreased by 7 is 10. Find the number.
A. -3 B. -17 C. 3 D. 17
Mathematics