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 3, what is the expected number of times it will be in compartment 3 or 4 before it finds food? Round your answer to the nearest hundredth.12345
A. 21
B. 1.59
C. 20
D. 11
Answer: B
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Find the intervals on which the function is increasing and the intervals on which the function is decreasing.f(x) = - 
x2 + 9x - 8
A. Increasing on 
; decreasing on 
B. Increasing on 
; decreasing on 
C. Increasing on 
; decreasing on 
D. Increasing on 
; decreasing on 
Evaluate the integral.
dx
A. - 
+ 
+ C
B. - 
- 
+ C
C. 
+ 
+ C
D. 
- 
+ C
Draw a valid conclusion from the given premises.Smiling people are happy. Alert people are not happy. Careful drivers are alert. Careless drivers have accidents.Therefore....
A. Careful drivers have accidents. B. Careful drivers are happy. C. People who smile are alert. D. People who smile have accidents.
Use the unit circle to determine the value of the given expression or state that it is undefined.csc 
A. - 
B. - 
C. - 
D. - 