Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.log x + log(x2 - 225) - log 5 - log(x - 15)
A. log 
B. log 
C. log 
D. log 
Answer: D
Mathematics
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Find the remaining sides of a 30° - 60° - 90° triangle if the longest side is 15.
What will be an ideal response?
Mathematics
Solve the problem.A water tank can be filled in 5 minutes and emptied in 8 minutes. If the drain is accidentally left open when the tank is being filled, how long does it take to fill the tank?
A. 13
minutes
B. 
minutes
C. 
minutes
D. 3
minutes
Mathematics
Approximate the integral by the trapezoidal rule.
dx; n = 4Express your answer to four decimal places.
A. 1.2392 B. 0.9593 C. 0.6196 D. 4.9568
Mathematics
Find the indefinite integral 
.
?
A. 
B. 
C. 
D. 
E. 
Mathematics