ttneedshelp1
ttneedshelp1 ttneedshelp1
  • 17-03-2017
  • Mathematics
contestada

what is 3^-r=9. can you show me the work too

what is 3r9 can you show me the work too class=

Respuesta :

konrad509
konrad509 konrad509
  • 17-03-2017
[tex]3^{-r}=9\\ 3^{-r}=3^2\\ -r=2\\ r=-2[/tex]

or

[tex]3^{-r}=9\\ -r=\log_39\\ -r=2\\ r=-2[/tex]
Answer Link

Otras preguntas

What period of time marked completion of breakup of Pangea followed by mass extinction
Sam rides his bike k kilometers. Annika rides her bike 2 less than 4 times as many kilometers as Sam rides. Explain why Sam must ride his bike more than 1/2 kil
Which war decision ultimately damaged the colonial economy? selling war bonds getting assistance from France printing more paper money getting assistance from
What is the relationship between aperture and shutter speed? how can you describe this relationship?
Which side had an advantage in location of the war? the Americans the British
What northern group was compared to southern slaves? Northern farmers Those in small villages that worked the land Factory laborers City dwellers in cramped co
How would do this using consecutive integers
Hillary’s family is thinking of relocating to a different city to save money. They set up a budget comparing the cost of living in four cities. Oakland Phoe
The data set shows the numbers of pages in the books on a reading list. 71, 96, 110, 112, 114, 114, 121, 127, 135, 175, 180 Which data values are outliers? Sele
How does the digestive system work with the circulatory system?