State the domain of the given function.f(x) = -6x + 2
A. {x|x is a real number and x ? 0}
B. {x|x is a real number}
C. {x|x ? 0}
D. {x|x ? 0}
Answer: B
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A patient's forearm is x-rayed from a distance (FFD) of 45cm with the current level set at 100mA. If a second x-ray is to be taken using the same time exposure as the first but with the current level set at 50mA, what distance should be used?
A. 32cm B. 23cm C. 90cm D. 15cm
Write the equation in standard form for an ellipse centered at (h, k). Identify the center and the vertices.5x2 + 3y2 + 12y - 3 = 0
A. C(-2, 0); V(-2, ±
); 
+ 
= 1
B. C(-2, 0); V(±2, 
); 
+ 
= 1
C. C(0, -2); V(0, -2 ± 
); 
+ 
= 1
D. C(0, -2); V(±
, -2); 
+ 
= 1
Solve the problem.Company X produces widgets. The annual cost of materials last year was 
The labor costs were 
Utilities and operations costs for the plant were 
The company received 
in revenue from the sales of the widgets. What was the profit?
A. $340,449 B. $358,221 C. $457,627 D. $1,792,487
Determine whether the graph shown is the graph of a polynomial function.
A. not a polynomial function B. polynomial function