Subtract.31 - 5.43
A. 25.57
B. 25.47
C. 25.67
D. 25.56
Answer: A
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Perform the operation and write the result in standard form.
?
?
A. 
B. 
C. 
D. 
E. 
City water, which is slightly chlorinated, is being used to flush a tank of heavily chlorinated water. The concentration C, in milligrams per gallon, of chlorine in the tank 
hours after flushing begins is given by
?
.
The water in the tank is safe for use when chlorine levels are less than 2.50 milligrams per gallon. For what values of t is the water in the tank safe for use? Round your answer to two decimal places.
?
A. 
hours
B. 
hours
C. 
hours
D. 
hours
Write the logarithmic equation in its equivalent exponential form.log1/5 625 = -4
A. 5625 = -4
B. (-4)1/5 = 625
C. 
-4 = 
D. 
-4= 625
Solve the problem.The following graph
A. has several Hamilton circuits (none of which contain the edge BC or CD). B. has a single Hamilton circuit (and its mirror-image circuit). C. has no Hamilton circuit. D. has several Hamilton circuits, all of which contain the edge AD. E. none of these