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

1. A scientific hypothesis can become a theory if ______. A) the entire community accepts it B) the hypothesis is tested extensively and competing hypothesis ar
The Sino-Japanese War exposed military weakness in A. China. B. Japan. C. Korea. D. Russia.
How did the actions of Daniel Shays and his followers relate to the economic problem of the Confederation period? What was the significance of the movement he l
How many different 4-digit numbers can be formed using the digits 2, 4, 5, 6, and 7 such that no digits repeat and the number is divisible by four?
The instantaneous velocity of an object is the blank of the object with a blank
round 9,254 to the nearest hundred
Which pair of molecules both contain carbon atoms?
Why did the Spanish explore and colonize New Mexico and Florida in the 1600s?
Which primary source document would give you insight into how the Great Chicago Fire affected working-class families?
Explain why numbers with a 5 in the ones place are not prime numbers