Solve the problem.In surveying, the height of a building is given by 
where ? and ? are the angles of elevation from the ground to the top of the building from two different points a distance of D apart. Solve for ?.
A. ? = tan-1 
B. ? = tan-1 
C. ? = tan-1 
D. ? = tan-1 
Answer: A
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Solve the problem.If 
and 
both converge conditionally, what can be said about 
?
A. The series always converges. B. The series always diverges. C. The series may converge or diverge.
Work the application. Write a legend and an equation. Solve the equation and answer in a complete sentence.Each box of matches contains 120 matches. Boxes of matches are shipped in cartons. Each carton contains 15 boxes of matches. How many matches are in each carton?
A. Let n = number of matches in each carton. 15 ? n = 120 Each carton contains 135 matches. B. Let n = number of matches in each carton. 120 ? 15 = n Each carton contains 180 matches. C. Let n = number of matches in each carton. 15 ? n = 120 Each carton contains 8 matches. D. Let n = number of matches in each carton. 120 ? 15 = n Each carton contains 1800 matches.
Determine whether the statement is true or false.? ? ?
A. True B. False
The graph of f(x) = ax2 + bx + c is given in the figure. Determine whether the discriminant is positive, negative, or zero.
A. Negative B. Positive C. Zero