Simplify the rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression.
A. x - 6, x ? 6
B. 
, x ? 6
C. 
, x ? -6
D. x + 6, x ? 6
Answer: D
Mathematics
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Find the equation of the line passing through the indicated two points. Write the equation in point-slope form.
and 
A. y - 
= 7(x - 1) or y - 
= 7(x - 7)
B. y + 
= 
(x + 1) or y + 
= 
(x + 7)
C. y - 
= 
(x - 1) or y - 
= 
(x - 7)
D. y + 
= 7(x + 1) or y + 
= 7(x + 7)
Mathematics
Divide and express the result in standard form.
A. 
- 
i
B. 
- 
i
C. 
- 
i
D. 
+ 
i
Mathematics
Sketch the derivative of the graph.
A. 
B. 
C. 
D. 
Mathematics
Find the derivative.y = ex5 ln x
A. 
B. 
C. 
D. 
Mathematics