TheEdwardsFamily
  • TheEdwardsFamily
Help.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Questions?
TheEdwardsFamily
  • TheEdwardsFamily
one sec
TheEdwardsFamily
  • TheEdwardsFamily
here it is. @kieran01pd2016
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TheEdwardsFamily
  • TheEdwardsFamily
@texaschic101 @MadisonEmery
TheEdwardsFamily
  • TheEdwardsFamily
@Michele_Laino @triciaal
welshfella
  • welshfella
use the rule of indices (x^a)^b = x^(ab)
anonymous
  • anonymous
Bascially, when you put an exponent on an exponent they multiply. So if you have (2^2)^3, it is the same as writing 2^6. Therefore, in this case, what times -5 would give you -15
welshfella
  • welshfella
in your problem the exponent multiplies the -5 to get -15
Michele_Laino
  • Michele_Laino
If we apply the rule of power of power, we can write this: \[\Large {\left( {{2^{ - 5}}} \right)^N} = {2^{ - 5 \cdot N}} = {2^{ - 15}}\] and then we have to solve this equation: \[\Large - 5 \cdot N = - 15\] please solve that equation for N
TheEdwardsFamily
  • TheEdwardsFamily
so...what you're saying is that 3 will be the answer? (accordinng to my work)
Michele_Laino
  • Michele_Laino
correct! it is N=3
TheEdwardsFamily
  • TheEdwardsFamily
Whoop! thanks

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