Gemgirl8899 Gemgirl8899
  • 03-11-2015
  • Mathematics
contestada

Change the subject of the formulae to b::: 8a + 3b = 12. And 3b^2=27

Respuesta :

TSO
TSO TSO
  • 03-11-2015
8a + 3b = 12
3b = 12 - 8a

[tex]b = \frac{12-8a}{3}[/tex]


And...

3b^2 = 27
b^2 = 9
[tex]b = \pm 3[/tex]
b = 3
b = -3
Answer Link

Otras preguntas

A candidate for president must be __________.
Which type of evidence is least likely to result in changes to a phylogenetic tree?
Estimate the quotient of 394.6 divided by 9
Which one of the following sentences is written in the active voice? A. It is said that definite steps can be taken to prevent many accidents. B. Accidents are
Explain what it mean to say that energy is conserved
How are the overexertion of muscles and the formation of lactic acid connected?
the reciprocal of 7/5
What does ethnic mean ?
People who take a "layer cake" view of federalism believe that (4 points) state governments are too weak to meet most citizen needs state governments are suprem
wha t is the world largest punctuation mark