Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the area.Find the area of the region between the curve x = e13t , y = 
e-12t and the x-axis, 0 ? t ? ln 9.
A. 13 B. 8 C. 12 D. 9
Mathematics
Sketch the graph of the quadratic function.f(x) = 
(x - 2)2 + 4
A. 
B. 
C. 
D. 
Mathematics
Factor the difference of squares. If the polynomial cannot be factored, write "prime."r2 - 81s2
A. (r - 9s)(r + 9s) B. (r2 - 9s)(r2 + 9s) C. prime D. (r - 9s)(r - 9s)
Mathematics
Determine whether the system of equations is consistent or inconsistent. If the system is consistent, determine whether the equations are dependent or independent.
A. Dependent B. Independent C. Inconsistent
Mathematics