Solve the equation by completing the square.(x + 8)(x - 9) = 1
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.How many ways can a committee of 3 be selected from a club with 12 members?
A. 220 B. 110 C. 1320 D. 6
Mathematics
Simplify.
3
A. 
B. 
C. 
D. 
Mathematics
Simplify. Include the absolute value symbol if necessary. If the answer is not a real number, state so.
A. 18.52 B. not a real number C. 9.26 D. -7
Mathematics
Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.x = et, y = e-t; -? < t < ?
A. y = eln x; 0 < x < ? B. y = e-x; -? < x < ? C. y = ex; -? < x < ? D. y = e-ln x; 0 < x < ?
Mathematics