Solve the following system by any appropriate method. If there is no real number solution, so state.
- 
= 1x + y = 7
A. (3, 10), (-17, -10)
B. (2, 4), (-16, 24)
C. (2, 3), (-16, 25)
D. (3, 4), (-17, 24)
Answer: D
Mathematics
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Multiply and simplify. Assume that all variables represent non-negative numbers.(
+ 
)(
- 
)
A. 5 - 2
B. -8
C. 18
D. 5 - 2
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Find the volume of the solid generated by revolving the shaded region about the given axis.About the y-axis
A. 
?
B. 
?
C. 
?
D. 14?
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Simplify. Assume that variables can represent any real number.
A. z - 3 B. ?z? - 3 C. ?z - 3? D. -z + 3
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Expand.(5x + 3)4
A. 1875x4 + 4500 x3 + 1350x2 + 1620x + 81 B. 625x4 + 1500x3 + 1350x2 + 540x + 81 C. 625x3 + 1500x2 + 1350x + 540 D. (25x2 + 15x + 9)4
Mathematics