A firm makes MP3 players. The research department at this firm found that the life of the MP3 players is normally distributed with a mean of 4900 hours and a standard deviation of 450 hours. How many playing hours should a warranty cover if the firm wants 7% of the MP3 players to be below this amount?

Astudent simplified a rational expression as shown.

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?