An x-ray of a patient's leg is done with a current setting of 30mA for a time of 1s. If none of the distances is changed and the current is increased to 60mA, what should the exposure time be?
A. 2s
B. 4s
C. 0.5s
D. 0.25s
Answer: C
Mathematics
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A. 
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C. ?
D. 
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A. {80} B. {20} C. {40} D. {-40}
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Factor out the largest common factor.6y2 - 2y4
A. 6y2(1 - y2) B. 2y2(3 - y2) C. 2y2(3 + y2) D. 2y3(3 - 2y2)
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Find the common ratio for the geometric sequence.3125, 625, 125, 25, . . .
A. 5
B. 
C. 
D. 
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