Gemgirl8899 Gemgirl8899

03-11-2015
Mathematics

contestada

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

Respuesta :

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

what examines the culture, political systems, social systems, economic systems, and characteristics of various peoples --why they eat certain foods, practice a

how is a magnetic field generated?

the coordinates of point you are given. the midpoint XY of is (3,-5). find the coordinates of point x.1. Y (0,2)

what is a field force that is used to generate electricity

x-y=5 what is the slope intercept form of the equation of the line what is the slope intercept form of the equation of the line

a particular plant root grows 3.5 inches per month. how many centimeters is the plant root growing per month? (1 inch = 2.54 centimeters). 0.73 centimeters 1.38

what does a comparison/contrast show?

x squared minus x minus 6 =0

geography is divided into what two areas?

Anakin has been practicing martial arts, and he wants to make sure he never drops another staff on the ground again. When he starts to lose his grip on somethin