Find the area of the triangle with the given vertices.
A. 
?
B. ?
C. ?
D. ?
E. ?
Answer: A
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Given the set sketched on the number line, identify the type of interval (open, closed, half-open, open infinite, closed infinite), write the set using set-builder notation, and write the set using interval notation.
A. open infinite interval; {x|x < -9}; (-?, -9) B. closed infinite interval; {x|x ? -9}; (-?, -9] C. closed infinite interval; {x|x ? -9}; [-9, ?) D. open infinite interval; {x|x > -9}; (-9, ?)
The graph of a one-to-one function f is given. Draw the graph of the inverse function f-1 as a dashed line or curve.f(x) = 
A. 
B. 
Solve the problem.The regression line relating dexterity scores (x) and productivity scores (y) for the employees of a company is 
Use the regression line to predict the productivity score for a person whose dexterity score is 
.
A. 78.1 B. 210.9 C. 58.2 D. 56.3
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.y = 18 - 5x5x + y = 28
A. {(12, 13)}
B. {(15, 3)}
C. {(x, y) 
}
D. ?