Use the choices below to fill in the blank. Choices may be used more than once or not at all.
For a single data set, the sum of the deviations from the mean is always 
.
A. 1
B. x
C. 0
D. 
Answer: C
Mathematics
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Simplify the radical expression.
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Add. Write the answer in lowest terms.
A. 49
B. 10
C. 29
D. 6
Mathematics
Simplify.
A. - 
B. 
C. 
D. 
Mathematics
Use transformations of graphs to sketch the graphs of y1 and y2. Graph y2 as a dashed curve.y1 = ?x?; y2 = ?x - 6?
A. 
B. 
C. 
D. 
Mathematics