Jumat, 07 Maret 2014

what is the best self propelled lawn mower under $500?

Q.


Answer
Snapper makes a great self propelled mower. Check out the drive mechanism: solid, with bearings and thick steel. Stay away from the cheaper mowers with the little transmission boxes that power both wheels simultaneously: They last about 2 years. My first snapper went 12 years, mowing an acre lot. The engine gave out. I saved the drive mechanism from the old one as a backup.

The sales of lawn mowers t years after a particular model is introduced is given by the function y = 5,500 ln(?




Nate


The sales of lawn mowers t years after a particular model is introduced is given by the function y = 5,500 ln(9t + 4), where y is the number of lawn mowers sold. How many lawn mowers will be sold 5 years after a model is introduced? Round the answer to the nearest whole number.

please show all work



Answer
y = 5,500 ln(9t + 4)

How many lawn mowers will be sold 5 years after a model is introduced ?

This means how many lawnmowers will be sold when t = 5

so

y = 5,500 ln(9t + 4) at t = 5 is

y = 5,500 ln(9(5) + 4)

= 5,500 ln(49)

= about 21,405 lawnmowers

result: 21,405 lawnmowers were sold at 5 years after the model was introduced.




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