Add.
A. 132
B. 131
C. 122
D. 133
Answer: A
Mathematics
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Simplify the expression.49 + (-50) - 8 - (-11) + (-30)
A. 10 B. -28 C. 32 D. -50
Mathematics
Perform the indicated operations.
÷ 
? 
A. 
B. 
C. r - s
D. r + s
Mathematics
For a triangle whose perimeter measures 36 units, the radius of the inscribed circle is 3.Find the area of the triangle.
A. 27 
B. 54
C. 108
D. None of These
Mathematics
Use Stokes's Theorem to evaluate 
. Use a computer algebra system to verify your results. Note: S is oriented counterclockwise as viewed from above.
?
?
?
S: 
, 
, 
?
A. ?
?
B. ?
C. ?
?
D. ?
?
E. ?
?
Mathematics