Graph the function.y = -4 cot x
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Four boys and three girls are seated, in a row, at random, to watch a play. What is the probability thata) a girl is seated at each end of the row?b) one of the boys is seated in the middle seat?c) boys and girls are seated alternately?
A. a) 
b) 
c) 
B. a) 
b) 
c) 
C. a) 
b) 
c) 
D. a) 
b) 
c) 
Solve the problem.The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 2 amperes when the resistance is 355 ohms. What is the current when the resistance is 570 ohms?
A. 3.2 amp B. 0.8 amp C. 0.31 amp D. 1.2 amp
Solve the equation. Express radicals in simplest form.-7k2 - 2 = -114
A. {-8, 8} B. {-4, 4} C. {-57} D. {4}
Solve the problem using your calculator.Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0. The following data were obtained regarding their GPAs on entering the program versus their current GPAs. Use linear regression to find a linear function that predicts a student's current GPA as a function of his or her entering GPA. Entering GPA Current GPA 3.5 3.6 3.8 3.7 3.6 3.9 3.6 3.6 3.5 3.9 3.9 3.8 4.0 3.7 3.9 3.9 3.5 3.8 3.7 4.0
A. y = 5.81 + 0.497x B. y = 4.91 + 0.0212x C. y = 3.67 + 0.0313x D. y = 2.51 + 0.329x