AshariaJackson
AshariaJackson AshariaJackson
  • 09-03-2019
  • Mathematics
contestada

Give an example that shows why you need to reverse the sign when dividing or multiplying an inequality by a negative number.



:(
this is hard​

Respuesta :

Ashraf82
Ashraf82 Ashraf82
  • 19-03-2019

Answer:

2 < 3 ⇒ -2 > -3

Step-by-step explanation:

∵ 2 < 3

If we divide each side by -1

∴ -2 < -3 but it's not true

∴ we must reverse the sign of inequality

∴ -2 > -3

similar:

∵ 25 > 20

If we divide each side by -5

∴ -5 > -4 it's not true

∴ we must reverse the sign of inequality

∴ -5 < -4

Answer Link

Otras preguntas

V Next → Function Notation: Mastery Test 1 Select the correct answer from each drop-down menu. A function is a relation where each input value is assigned to Th
Why might it be beneficial for a species to have a lot of variations?.
HELP ASAP PLS which of these cause a puppy to grow a. cells moving from place to place b. cells enlarging and dividing c. cells getting rid of wastes d. cel
In watermelons, bitter fruit (B) is dominant to sweet fruit (b), and yellow spots (S) are dominant to no spots (s). The genes for these two characteristics asso
select all equations where x=3 is a solution a x+4=7 b x/9 =3 c 5-x=2 d 8x=32 e x-10=7
4y=15. It will only let me type 1 number please help
PLEASE HELP ME!!!!30 points Edmentum Discussion Topic In this unit, you explored different types of media that people use to communicate information. You learne
A particle unaffected by an electric field could have a quark composition of:.
Which part is an AC voltage component in generac?
sum of 2x and 3z in algebraic expression