Solve the problem. Round to an appropriate number of significant digits.In one study the maximum heart rates of conditioned athletes were examined. A group of athletes was exercised to exhaustion. Let x represent an athlete's heart rate five seconds after stopping exercise and y represent an athlete's heart rate ten seconds after stopping exercise. It was found that the maximum heart rate H for these athletes satisfied the following two equations. H = 0.491x + 0.468y + 11.2 H = -0.981x + 1.872y + 26.4If an athlete had maximum heart rate H = 155, determine the value of x graphically.
A. x = 151.9
B. x = 152.2
C. x = 151.1
D. x = 151.6
Answer: D
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Provide an appropriate response.You are the coach of a basketball team. Player A's mean score per game over the last season has been 24 with a standard deviation of 2. Player B's mean score per game over the last season has been 23 with a standard deviation of 6. Contrast the performance of the two players. Which player would be your choice to play in a game in which you all you need is a medium performance to win? Which player would be your choice to play in a game in which your team needs an exceptional performance in order to win?
What will be an ideal response?
Solve.The population of an endangered species living in a controlled habitat is given by the equation
where P is the population and t is the time in months since the population was moved to the habitat. Graph the equation for t = 0, 6, 12, and 18.
A. 
B. 
C. 
D. 
Use front end rounding to round the number.22,222,653 viewers watched the television show.
A. 30,000,000 viewers B. 22,000,000 viewers C. 32,000,000 viewers D. 20,000,000 viewers
Solve the problem.The population of a town is increasing by 400 inhabitants each year. If its population at the beginning of 1990 was 28,852, what was its population at the beginning of 2000?
A. 32,452 inhabitants B. 576,680 inhabitants C. 32,852 inhabitants D. 288,340 inhabitants