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.3 log5 2 +  log5(r - 4) -  log5 r

A. log5 
B. log5 
C. log5 
D. log5 

Answer: B

Mathematics

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Solve the problem. Write your answer as a mixed number when possible.A biology experiment required pouring  gallon of nutrient solution and  gallon of pure water into a tank. At the end of the experiment,  gallon of fluid had evaporated. How much fluid remained in the tank?

A.  gallon(s)
B. 4 gallons(s)
C.  gallon(s)
D.  gallon(s)

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Mathematics

Classify the real number as a natural number, whole number, integer, rational number and/or irrational number. The number may belong to more than one set.-5971

A. whole number, integer, rational number B. natural number, integer, rational number C. integer D. integer, rational number

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First, use front-end rounding to round each number and estimate the answer. Then, find the exact answer.Tran's subtotal at Scramble's Electronics is $304.31. The sales tax on these items is $23.81. What was Tran's total bill?

A. Estimate: $280; exact: $280.5 B. Estimate: $328.12; exact:  $328.12 C. Estimate: $300; exact:  $328.12 D. Estimate: $320; exact:  $328.12

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Mathematics

Determine the constant term that must be added to the expression to make it a perfect square.x2 + x

A.
B.  
C.  
D.  

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Mathematics