Factor by grouping. Assume any variable exponents represent whole numbers.5x3 - 25x2 + 8x - 40
A. (x - 5)(5x2 - 8)
B. (x - 5)(5x2 + 8)
C. (x + 5)(5x2 + 8)
D. (x - 5)(5x + 8)
Answer: B
Mathematics
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Find the limit.
sec x
A. 0 B. ? C. -? D. 1
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Translate the English expression into an algebraic expression. Use x to represent the unknown number.The sum of a number and 124
A. x + 124 B. 124x C. 124 D. x - 124
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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.Asymptotes y = 
x, y = - 
x; one vertex is (9, 0)
A. 
- 
= 1
B. 
- 
= 9
C. 
- 
= 1
D. 
- 
= 324
Mathematics
Choose the graph that satisfies the given conditions.Degree 3 with one x-intercept and a positive leading coefficient
A. 
B. 
C. 
D. 
Mathematics