Find the mean. Round to the nearest tenth unless otherwise stated.Average number of defects: 8.0, 8.2, 8.8, 7.5, 8.3, 8.0, 8.7, 8.8, 7.1, 8.0, 7.5, 7.7, 7.5, 8.2, 8.2, 6.9, 8.3, 8.7
A. 8.3
B. 7.6
C. 8.0
D. 8.5
Answer: C
Mathematics
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Find the solution set of the system by graphing the equations by hand. If the system is inconsistent or dependent, say so.x = -yy + x = 6
A. all points on the line x = -y; dependent system B. (1, 5) C. (1, 1) D. empty set; inconsistent system
Mathematics
Write the decimal as a fraction or mixed number in lowest terms.4.6
A. 
B. 
C. 4
D. 1
Mathematics
Simplify the expression.5-3
A. 
B. -125
C. 125
D. 
Mathematics
Perform the indicated operation. Assume that all variables are nonnegative.(
+ 
)(
- 
)
A. -11
B. 15
C. 2 - 2
D. 2 - 2
Mathematics