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

In contrast to modern psychologists, ancient scholars explored human nature primarily through:

Many researchers hope pig organs will one day be successfully transplanted to humans. What would an advantage of successful pig-human transplants?

What was the environmental condition of northern europe around 9000 bce?

People who worry that a safety belt wrinkles their clothes can

which element of a short story tells the story and has a certain point of view A) the narrator of the story b) the plot of the storyc) the setting of the story

What is the solution to x^2-8x+18=0 when written in the form a+or-bi?

With this description of Bradford in mind, what will affect his point-of-view?

The process by which chloroplasts were derived from photosynthetic bacteria is called

What is the difference between the transactions display current and display at key date?

Susan's penny bank is 1/4 full. After she adds 360 pennies, it is 5/8 full. How many pennies can Susan's bank hold?