Indicate the property that justifies the statement.7a + b = b + 7a
A. Commutative property of addition
B. Commutative property of multiplication
C. Associative property of addition
D. Distributive property
Answer: A
Mathematics
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Find the area of the surface generated when the given curve is revolved about the y-axis.y = (3x)1/3, for 
? x ? 
A. 
(2573/2 - 23/2)
B. 
(2573/2 - 1)
C. 
(2573/2 - 23/2)
D. 
(2573/2 - 23/2)
Mathematics
Evaluate the integral. 
A. ln 
- 
+ C
B. 
- 5 sec -1 
+ C
C. 
- 5 sec -1 
+ C
D. ln 
- 
+ C
Mathematics
Which of the given lines is parallel to the line x=8+t, y=t, z=-7-10t?
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Mathematics
Solve.Roger agreed to 8 years of car payments. He has been making payments for 
and 
How much longer does he have to keep making payments?
A. 3 yr 2 mo B. 3 yr C. 3 yr 10 mo D. 3 yr 9 mo
Mathematics