A 20-meter line is used to tether a helium-filled balloon. Because of a breeze, the line makes an angle of approximately 85° with the ground. Use a trigonometric function to write an equation involving the unknown quantity.
?
A. 
(where h is height.)
B. 
(where h is height.)
C. 
(where h is height.)
D. 
(where h is height.)
E. 
(where h is height.)
Answer: A
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Solve the problem.Find the center and the scale factor of the dilation shown below.
A. Center T; scale factor 3/4 B. Center S; scale factor 4/3 C. Center S; scale factor 3/4 D. Center T; scale factor 1/2
Solve the quadratic equation 
by completing the square. Simplify the solutions and write them in 
form, separated by a comma.
?
?
A. 
B. 
C. 
D. 
E. 
A linear programming maximization problem with four variables and three nontrivial inequalities has the number 27 as the maximum value of the objective function.(a) How many variables and nontrivial inequalities will the dual problem have?(b) What is the minimum value of the objective function of the dual problem?
What will be an ideal response?
Determine whether the given sequence is arithmetic, geometric, or neither. If arithmetic, find the common difference. If geometric, find the common ratio.
A. Geometric, r = 
B. Arithmetic, d = 
C. Geometric, r = 
D. Neither