Solve the problem.A rat is placed at random in one of five compartments in a maze. Compartments 1, 2, and 5 have food; so the rat will remain at any of these once reached. If the rat is placed in compartment 4, what is the expected number of times it will be in compartment 4 before it finds food? Round your answer to the nearest hundredth. 1 2 345
A. 1.26
B. 1.23
C. 0.21
D. 0.31
Answer: B
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Solve the problem.Find the volume of the solid generated by revolving the region in the first quadrant bounded by the coordinate axes, the curve y = ex, and the line x = ln 3 about the line x = ln 3.
A. 2?(2 + ln 3) B. 2?(2 - ln 3) C. 2?(3 - ln 4) D. 2?(3 - ln 3)
Decide if the inequality is true or false.-9 > 5
A. False B. True
Solve the problem.A projectile is fired with an initial velocity of 500 feet per second at an angle of 45° with the horizontal. To the nearest foot, find the maximum altitude of the projectile. The parametric equations for the path of the projectile are x = (500 cos 45°)t, and y = (500 sin 45°)t - 16t2.
A. 1,945 feet B. 1,953 feet C. 1,969 feet D. 1,936 feet
Use your graphing calculator to graph 
in degree mode. Use the graph with the appropriate command to evaluate the expression.
?
?
A. 
B. 
C. 
D. 
E. 