Sketch the correct graph and domain of the function 
.
?
A. 
Domain: 
B. ?
Domain: 
C. ?
Domain: 
D.
Domain: 
E. ?
Domain: 
Answer: E
Mathematics
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Provide an appropriate response.Can the sample variance ever be a negative number? If so, for what types of data? If not, why not? Can the sample variance ever be zero? If so, for what types of data? If not, why not? Explain your reasoning.
What will be an ideal response?
Mathematics
Solve the problem.Total profit is defined as total revenue minus total cost. R(x) and C(x) are the revenue and cost from the sale of x televisions. If 
and 
find the profit from the sale of 80 televisions.
A. $25,520 B. $7120 C. $19,120 D. $13,520
Mathematics
Perform the indicated operation and simplify. 
- 
A. 
B. 
C. 
D. 
Mathematics
Determine whether the ordered pair is a solution of the system of linear equations.(-3, 5);
A. Yes B. No
Mathematics