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.
(log5 (r - 9) - log5 r)
A. log5 
B. log5 
C. log5 
D. log5 
Answer: A
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Find all angles in [0°, 360°) that satisfy the equation.cot ? = 1
A. {45°, 225°} B. {225°, 315°} C. {135°, 225°} D. {45°, 315°}
Find all real-number solutions. Round your answer to the second decimal place, if necessary. 4b3 = 74
A. 6.17 B. ±6.17 C. ±2.64 D. 2.64
Suppose that the average adult in the United States will work x number of days (rounded to the nearest day) to earn enough to pay for all of the household's leisure activities in that year. This number can be calculated by multiplying the average percent of household income spent on leisure activities by 365 (the number of days in a year). The bar graph shows the percent of income spent in various countries of the world. Use the graph to answer the question.
How many days each year will the average adult have to work in order to pay for leisure activities in China? Round to the nearest day.
A. 24 days B. 2373 days C. 341 days D. 65 days
Find the perimeter.
A. 48 m B. 46 m C. 108 m D. 36 m