Evaluate the expression log 9 (log 2 8).
A.
B.
C.
D.
E.
Answer: E
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A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time. Round to the nearest hundredth, if necessary.Greater than 500 hours
A. 50% B. 52% C. 80% D. 40%
Check the answer. If incorrect, give the correct answer.
A. Incorrect; should be 62,315 R5 B. Incorrect; should be 62,314 R7 C. Incorrect; should be 62,314 R6 D. Correct
Solve.In a large city, 0.823 of the budget went toward city workers' salaries. Write this decimal as a percent.
A. 82.3% B. 0.0823% C. 0.823% D. 823%
Perform conversions between percents, decimals, and fractions to complete chart. Write any repeating decimals with as few digits as possible.
A.
B.
C.
D.