Find the limit.sec-1 x

A. - 
B.
C. ?
D. 0


Answer: B

Mathematics

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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

Mathematics

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

Mathematics

Match the graph to one of the polar equations.

A. r = 
B. ? = -
C. r = -
D. ? = 

Mathematics

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

Mathematics