blackheartderp
blackheartderp blackheartderp
  • 03-05-2014
  • Mathematics
contestada

which inequality is equivalent to 7x-2y> 8.

A) y> 7/2x+8
b) y>-2/7x+8/7
c) y <7/2x-4
d) y <-2/7x-4/7

(whats a Inequality? )

Respuesta :

Lilith
Lilith Lilith
  • 03-05-2014
[tex]7x-2y> 8 \ \ -7x \\ \\7x -7x-2y> 8 -7x \\ \\ -2y >8-7x \ \ / : (-2)\\ \\\frac{-2}{-2}\cdot y < \frac{8}{(-2)}-\frac{7}{(-2)}x \\ \\ y < \frac{7}{ 2}x -4 \\ \\ \\  Answer : \ c) \ y < \frac{7}{2}x-4[/tex]


[tex]If \ we \ multiply \ or \ divide \ both \ sides \ of \ an \ inequality \ by \ a \ negative \\ \\number \ we \ have \ to \ switch \ the \ direction \ of \ the \ inequality[/tex]






Answer Link

Otras preguntas

How is matter conserved in the carbon cycle? A. Carbon absorbs energy and later releases the same amount of energy. B. Carbon changes from one form to another,
In "The World Is Too Much with Us," what accounts for people's being "out of tune"? a. their disregard for others c. their over-involvement with economic aspec
Which structure in the diagram does the fungus use to obtain nutrients? A. hyphae B. sporangium C. spores
A scientist has discovered the means to block the chemical that directly provides cells with energy for cellular processes. Which cell substance is most likely
Tennis Garden is 5 yards long how long is her garden in feet
2 ways in which busisnsses may act ethically
When x=12 y=8. Find x when y=12
What is the population in Colorado?
what you get when you multiply and objects mass times the acceleration
In "Mowgli's Brothers," how is the conflict between the wolves and Shere Khan over what to do with the young Mowgli resolved? A. Raksha threatens to overthrow