jankip2606 jankip2606
  • 01-04-2020
  • Mathematics
contestada

What is the value of x in the equation ln (x + 6) – ln (2x – 1) = 1?

Respuesta :

ghanami
ghanami ghanami
  • 01-04-2020

Answer:

1.95

Step-by-step explanation:

hello :

ln (x + 6) – ln (2x – 1) = 1  ...(*)

this expression exist : 2x-1 > 0 and x+6 > 0   means : x> 1/2 and x  > -6

hence for : x> 1/2   (*) equivalent to  ln((x+6)/(2x-1))= lne.......(1=lne)

(x+6)/(2x-1) = e

x+6 = e(2x-1)        means : x+6 = 2ex-e

-x+2ex = e+6

x(2e-1) = e+6

x = (e+6)/(2e-1)    =(2.73+6)/(2(2.73)-1) =8.73/4.46 =1.95

Answer Link

Otras preguntas

In 509 BCE the Romans removed their last king. What type of government was put in place? A. Republic B. Dictatorship C. Rome fell apart after t
What would you enter at the command prompt to display the shared library information for executables?
x/3 + 9 + 2x + x = 75 i’m stuck
A scientist puts mRNA nucleotide chains that contain only Uracil (U) in a test tube. That test tube allows protein synthesis to be initiated. After a short time
¿De qué planta hacen algunas de las bebidas típicas de México? a. del pino c. del trigo b. del cacao d. del agave
What is the effect of the type of food available on the frequency of different types of bird beaks?”
the paintings in the lascaux cave were discovered by
Why are some volcanoes explosive and other non-explosive?
When electrons from two elements are shared equally what type of bound is formed?
20 POINTS!!!!!!! PLEASE HELP!!!!!! Identify the infinitive phrase that is the subject of the sentence. A) To finish his exam without breaking another pencil