Add or subtract as indicated.6
- 11
+ 2
A. 7
B. 3
C. -7
D. -3
Answer: D
Mathematics
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Perform the indicated operation. Simplify, if possible.
- 
+ 
A. 
B. 
C. 
D. 
Mathematics
If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.? = 4 radians, A = 54 square meters, r = ?
A. 432 m B. 108 m C. 10.39 m D. 5.2 m
Mathematics
Simplify the expression algebraically.
?
?
A. -
B. 
C. 
D. 
E. 
Mathematics
Divide 6.41 x 10 -3 by 8.04 x 10 7 and express the answer in scientific notation.
A. 7.97 x 10-12
B. 7.97 x 10-10
C. 7.97 x 103
D. 7.97 x 105
E. 7.97 x 10-11
Mathematics