Find the sum or difference.(2n7 - 9n - 7n6) + (-4n6 + 5n7 - 6n)
A. -19n14
B. 7n7 - 11n6 - 15n
C. -4n7 - 2n6 - 13n
D. 7n - 11n7 - 15n6
Answer: B
Mathematics
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Find an equation of the conic satisfying the given conditions.
Hyperbola, foci (5, 6) and (5, –4), asymptotes x = 2y + 3 and x = – 2y + 7
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Evaluate the integral.
A. - 
B. - 
C. - 
+ 2 
D. - 
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The function f is one-to-one. Find its inverse.f(x) = x2 + 2, x ? 0
A. f-1(x) = 
, x ? -2
B. f-1(x) = 
- 2, x ? 0
C. f-1(x) = 
, x ? 2
D. f-1(x) = 
- 2, x < 0
Mathematics
Solve the inequality. ? 5|x + 10| ? 8 ?
A. x ? - 
, x ? - 
B. x ? - 
, x ? - 
C. x< - 
, x ? - 
D. - 
? x ? 
E. x ? - 
Mathematics