The lifespan of all microwave ovens sold in the United States has a mean of 9 years and a standard deviation of 2.5 years. If a particular microwave oven has z-score of -1.5, how many years did it last? a.) 5.25 years
b.) 7.5

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

Find the perimeter of the figure shown above. a. 40 cm c. 52 cm b. 60 cm d. 75 cm select the best answer from the choices provided

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents