Fishtastic
Fishtastic
15-03-2015
Mathematics
contestada
how do i solve this? (1/3x-11)^(1/2)=5
Respuesta :
Since3122015
Since3122015
15-03-2015
[tex] (\frac{1}{3} x-11)^{ \frac{1}{2} }=5\\ ((\frac{1}{3} x-11)^{ \frac{1}{2} })^{2}=(5)^{2}\\ \frac{1}{3} x-11=25\\ \frac{1}{3} x=36\\x=108[/tex]
Answer Link
smartypants3
smartypants3
15-03-2015
square both sides to get
(1/3x-11)=25
1/3x-11=25 then solve
why? because ^(1/2) means "take the square root". We need to "undo", or find the inverse so we square both sides.
Answer Link
VER TODAS LAS RESPUESTAS ( 62+ )
Otras preguntas
When this car moves forward by 180 cm, each wheel does one full turn. What is the diameter of the wheels to the nearest centimetre?
Is the following correspondence a function
3x+4y=17 solve for y.
what is the GCF of 12x and 44xy
let f(x)=x^2 - 16. find f^-1(x).
What does the random variable (r) for a binomial experiment of n trials represent?
When this car moves forward by 180 cm, each wheel does one full turn. What is the diameter of the wheels to the nearest centimetre?
If a store credit account charges 1.5% interest each month, what is the APR?
What does the random variable (r) for a binomial experiment of n trials represent?
For what values of the variable is each rational expression undefined2x-3/2x-1( step by step please)