prxnce10 prxnce10
  • 03-02-2020
  • Mathematics
contestada

In (x-7)= ln8-ln(x) Solve for “x”

Respuesta :

PollyP52 PollyP52
  • 03-02-2020

Answer:

x = 8.

Step-by-step explanation:

ln(x - 7) = ln8 - lnx   Using the laws of logarithms:

ln(x - 7) = ln (8/x)

x - 7 = 8/x

x^2 - 7x = 8

x^2 - 7x - 8 = 0

(x - 8)(x + 1)  = 0

x = -1, 8.

x must be 8 as there is no real value of the log of a negative.

Answer Link

Otras preguntas

x^2+17x=-42 how do i find the solutions to this problem?
Can someone tell me the area plzz I’ll give Brainly
The radius of a circle is 1 millimeter what is the circle area
x2 – 6x + 8 = 0 is x = 2. What is the other solution?
What is median of 3 7 5 2 4 2 53 6 9 7 7 3 5 2 7 3 2 2 7
Where does blood from the left side of your heart go
how do you say " how are you? " in spanish
“You need a good, restful night's sleep. Tomorrow you'll feel like a new man, I'll wager. Then we'll hunt, eh? I've one rather promising prospect—" What chillin
A female fly, full of fertilized eggs, is swept by high winds to an island far out to sea. She is the first fly to arrive on this island and the only fly to arr
Directions: Type your answer in the box. You may use numerals or words. Examine the Punnett square below, which represents a dihybrid cross of two rose bushes.