Find any numbers for which the rational expression is undefined.
A. x = 5
B. x = 
, x = - 
C. x = 20
D. none
Answer: A
Mathematics
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Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round your answer to three decimal places. log4.1225
A. 54.878 B. 0.261 C. 2.352 D. 3.839
Mathematics
Solve the problem.A rock falls from a tower that is 480 feet high. As it is falling, its height is given by the function 
How many seconds will it take for the rock to land on the ground?
A. 21.9 seconds B. 14,400 seconds C. 21.5 seconds D. 5.5 seconds
Mathematics
Evaluate the series, if it converges.- 
+ 
- 
+ 
+ ...
A. - 
B. Does not converge
C. - 
D. - 
Mathematics
Find the exact real solutions of the equation 
, if they exist.
?
A. 
and 
B. 
and 
C. 
and 
D. 
and 
E. 
and 
Mathematics