If y varies inversely as x, write a general formula to describe the variation.y = 
when x = 24
A. y = 
B. y = 
C. y = 
D. y = 
x
Answer: B
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Evaluate the function requested. Write your answer as a fraction in lowest terms.
Find tan A.
A. tan A = 
B. tan A = 
C. tan A = 
D. tan A = 
Find the part.5000% of 128 universities
A. 6400 universities B. 640,000 universities C. 640 universities D. 64,000 universities
Evaluate the permutation.P(n, n - 1)
A. n! B. n C. 1 D. n - 1
Solve the problem.Newton's law of cooling states that the temperature f(t) of a body at time t is given by: 
where C and k are constants and T0 is the temperature of the environment in which the object rests. If C = 280 and k = 0.17 and t is in minutes, how long will it take for a glass baking dish containing brownies to cool to a comfortable-to-touch temperature of 93°F in a room that is at 72°F? Round your answer to the nearest minute.
A. 15 min B. 19 min C. 12 min D. 10 min