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 rattlesnake is the most popular snake in our country
2[39/(16-12*4)+(9+6*3*7]
prove that opposite angles of a parallelogram are congruent
This question is based on The Gettsyburg Address by Abraham Lincoln and “Letter to His Son” by Robert E. Lee. Which idea do Lincoln and Lee share? A.The world w
Compare the mostly likely cause of death for an individual born in 1900and an individual born in 2006
3. At the mall, Leona bought a T-shirt and a book for a total of $23. The book cost $12. How much did the T-shirt cost? (a) What is the unknown information? (b
how much bigger is 3 1/4 than 1 3/4 writing your answer as a decimal
what shapes can you obtain by taking a cross section of a cone?
which expression is equivalent to the algebraic expression below? -4w(3x-5) A. -x-5 B. -x-9 C. -12x+20 D. -12x-5
is topaz organic or inorganic