langfordarmonip40dbs
langfordarmonip40dbs langfordarmonip40dbs
  • 03-05-2018
  • Mathematics
contestada

Giovanni justifies whether the expression -4x-8 is equivalent to -2(x+1)-2(x+3)by letting x=3 in both expressions. What is the value of each expression when x=3

3 and -20

4 and 4

-20 and -20

3 and 4

Respuesta :

carlosego
carlosego carlosego
  • 12-05-2018
For this case we have the following expressions:
 -4x-8
 -2 (x + 1) -2 (x + 3)
 Evaluating x = 3 in both expressions we have:
 -4 (3) -8 = -12 - 8 = -20
 -2 (x + 1) -2 (x + 3) = -2 (3 + 1) -2 (3 + 3) = -2 (4) -2 (6) = -8-12 = -20
 Answer:
 the value of each expression when x = 3 is:
 -20 and -20
Answer Link
DaisyBinaFlower
DaisyBinaFlower DaisyBinaFlower
  • 17-05-2018
The answer is C. -20 and -20 on grad soultions.
Answer Link

Otras preguntas

please help due pretty soon.​
What is the correct meaning of the word genuine?
list down 3 hardware we can use in making posterplsss pa help po​
NEED ANSWER IN PHOTOSYNTHESIS DO YOU LOSE OR GAIN ATONS
Name some of the economic troubles of France.
What is the speed of the bullet in metres per minute?
Pleas help if these are correct and what are the rest (Sorry if it’s inappropriate for some people).
Each player on the team clearly plays a specific role as an individual, but how do they combine their efforts to succeed as a team?
Graph the line y=3x-8​
Can someone help me with this probelm ?