Solve the equation for the indicated variable.c = ± 
for E
A. E = ±c
B. E = mc2
C. E = mc
D. E = ± 
Answer: B
Mathematics
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a. Quadrant IV b. Along the y-axis c. Quadrant II d. Along the x-axis
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A. 
B. 
C. 
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Use the properties of limits to help decide whether the limit exists. If the limit exists, find its value.
A. ?
B. Does not exist
C. 
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