THoover09 THoover09

11-03-2016
Mathematics

contestada

What is the solution of log3x − 725 = 2?

Respuesta :

apologiabiology apologiabiology

11-03-2016

so remember

[tex] log_{a}x=y [/tex] means a^y=x so

[tex] log_{3x-7}25=2 [/tex] means (3x-7)^2=25
(3x-7)^2=25
square root both sides
3x-7=+/-5
3x-7=5
3x-7=-5
add 7
3x=12
3x=2
divide 3
x=4
x=2/3

x=4 or 2/3

Answer Link

Otras preguntas

how many yards in 26 feet

¿Qué beneficios trajo la España-musulmana? a. Favoreció a la música b. Favoreció a la gastronomía c. Favoreció al gobierno d. Favoreció al desarrollo cultural

What is social structure?

Describe the difference between gender expectations and gender realities in the Victorian Era. How did this difference lead to social change and reform in later

Solve the simplify 1/4 times 4/7

A polynomial that has 5 turning points is multiplied by another polynomial that has 6 zeros. What is the minimum degree of the new polynomial?

A liquid does not have a definite shape, but it does have a definite volume. TRUE or FALSE

how do we know that telemachus is nervous about talking to nestor

what is a correct first step in solving the inequality –4(3 – 5x)≥ –6x 9? –12 – 20x ≤ –6x 9 –12 – 20x ≥ –6x 9 –12 20x ≤ –6x 9 –12 20x ≥ –6x 9

The depreciation method that bases the expense on the level of use instead of the passage of time is the _______ method.