isaachernandez11 isaachernandez11

04-05-2017
Mathematics

contestada

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

Respuesta :

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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04-05-2017

false.
answer : +7 or -7.

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