Simplify the expression.5a - 2a + 3
A. 3a + 3
B. -3a + 3
C. 7a + 3
D. 6a
Answer: A
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the x-axis.x = 2y2, x = - 2y, y = 2
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
For the function shown in the graph, find the indicated function value and limit.Find f(-1) and
f(x).
A is the point 
A. Does not exist; 
B. -1; -1
C. -1; does not exist
D. -1; 
Mathematics
Provide an appropriate response.How many pieces of fabric that are each 
yards can be cut from a bolt that has 10 yards of fabric?
A. 5 pieces
B. 4 pieces
C. 
pieces
D. 6 pieces
Mathematics
Use a half-angle formula to find the exact value of the expression.tan 165°
A. -
- 2
B. 
- 2
C. 
+ 2
D. -
+ 2
Mathematics