isaachernandez11 isaachernandez11
  • 04-05-2017
  • Mathematics
contestada

the solution of the equation 2^x=49 is approximately 5.61. true or false?

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ghanami
ghanami ghanami
  • 04-05-2017
hello :
2^x=49
 ln(2^x) =  ln (49)
xln(2) = ln(49)
x= ln(49)/ln(2)
but : ln(49)≃3.89 and ln(2)≃0.69
x ≃ 5.63  
















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xyz111
xyz111 xyz111
  • 04-05-2017
false.
answer : +7 or -7.
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please help thanks very much