Rationalize the denominator and, if possible, simplify.
A. 
- 
B. 
C. 
D. 
Answer: D
Mathematics
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Calculate the circulation of the field F around the closed curve C.F = (-x - y)i + (x + y)j , curve C is the counterclockwise path around the circle with radius 5 centered at 
A. 50(1 + ?) + 200 B. 100? C. 50? D. 50(1 + ?)
Mathematics
Locate the fraction on the number line.
A.
B.
C.
D.
Mathematics
Simplify. Assume that each variable is nonnegative.( 2 - 
)( 6 - 
)
A. 12 - 7
B. 12 - 8
+ x
C. 12 - 8
- x
D. 12 - 7x
Mathematics
Write the number in scientific notation.518.5
A. 5.185 × 103 B. 5.185 × 10-2 C. 5.185 × 102 D. 5.185 × 10-3
Mathematics