Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. 40
B. 4
C. 1.00
D. 1.0
Answer: B
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Solve the problem. Round to the nearest hundredth, if necessary.The average middle-distance runner at a local high school runs the mile in 5.5 minutes, with a standard deviation of 0.4 minute. Find the percentage of runners that will run the mile in less than 4.8 minutes.
A. 95.99% B. 4.01% C. 4.46% D. 94.54%
The job of strategic leadership is reserved for top managers. Managers at lower levels can not be strategic leaders.
Answer the following statement true (T) or false (F)
Solve the problem.Suppose a cost-benefit model is given by y = 
, where y is the cost in thousands of dollars for removing x percent of a given pollutant. Find the cost of removing 80% to the nearest dollar.
A. $7100 B. $28,400 C. $4000 D. $5680
Solve the problem.By how many orders of magnitude do two earthquakes differ if one is rated 1.5 on the Richter scale and the other is rated 3.9?
A. 1.9 B. 4.8 C. 2.4 D. 1.2