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

The United Nations only uses troops and trade embargoes to back the Declaration of Human Rights
Is 1.027 5 greater than 1.029
11.63 as a mixed number
a small syringe is used to give a patient 0.23 ml of medication 4 times per day for 4 days. how much medication does he receive over the 4 days
six people went into the woods to look for truffles. On average they collected 7 truffles per person. The average of the last four people to come back was 8 tru
rachel purchased different carpets that had the same ratio of the length to the width. the table below shows the length and width of some carpets rachel bought:
what is 13/26 simplified
The belief in one s power to accomplish tasks and affect outcomes is________. self-talk self-efficacy self-concept self-esteem
Adivinanzas Cuantos,huevos pone una gallina
Marcel made an error when he used the distributive property to solve the problem shown. Which sentence describes the error? a.In Step 2, 90 should be multiplie