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

1. Find the value of x in each of the giving your answer correct to 3 significant figures.​
1. Write an expression using symbols: a) The sum of x and y. b)The product of 5 and y minus x c)The difference between p and q d) The sum of m and n divided by
The dimensions of a water tank are 13cm,10cm and 70cm.If it is half filled with water,calculate the volume of the water in litres
Eight less than half a number
sugars are used for energy and what else??
Piecewise Functions
•Atomic Composition Quick Check• answers :) 1. protons plus neutrons 2. an oxygen atom with 8 electrons, 8 protons, and 9 neutrons 3. 7 protons, 7 neutrons, an
1. Are these two claims equivalent, in conflict, or not comparable because they're talking about different things? 1. 16.3% of Americans are without health ins
NEED HELP PLEASE Assume that the Poisson distribution applies and that the mean number of hurricanes in a certain area is 7.8 per year. a. Find the probability
Order these numbers from least to greatest