Provide an appropriate response.Tell what restrictions, if any, must be made on d and k (both real numbers) to guarantee that t is a real number. Assume that the denominator is not zero.t = 
What will be an ideal response?
Either both must be positive, both must be negative, or d must be zero.
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Determine the value of the indicated function in the given manner.Find tan 60° by using the functions of 30°.
A. 
B. 
C. 
D. 
Determine the standard equation of the hyperbola with the given characteristics and sketch the graph.The center is at (0, 0), a vertex is at (0, 3), and a focus is at (0, -3
).
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Solve the problem.The gravitational attraction A between two masses varies inversely as the square of the distance between them. If the force of attraction is 4 lb when the masses are 3 ft apart, what is the attraction when the masses are 6 ft apart?
A. 4 lb B. 3 lb C. 1 lb D. 2 lb
Find the unknown diameter or radius as indicated.
A. 16 m B. 8? m C. 4 m D. 4? m