Find the limit.
sec-1 x
A. -
B.
C. ?
D. 0
Answer: B
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Approximate the area of the triangle to the nearest tenth.a = 151, b = 160, c = 172
A. 13,908 B. 716 C. 11,126.4 D. 16,689.6
Identify the leading term and leading coefficient of the polynomial.6a2 + 13a5 - 8a
A. 6a2, 6 B. -8a5, -8 C. 13a5, 13 D. -8a, -8
Match the graph to one of the polar equations.
A. r =
B. ? = -
C. r = -
D. ? =
Solve the problem.One hundred rats are being trained to run through a maze and are rewarded when they run through it correctly. Once a rat successfully runs the maze, it continues to run the maze correctly in all subsequent trials. The number of rats that run the maze incorrectly after t attempts is given approximately by Find the number of trials required such that only 45% of the rats are running the maze incorrectly. Round to the nearest trial.
A. 5 trials B. 27 trials C. 6 trials D. 23 trials