slytherinprincp6u29k
slytherinprincp6u29k slytherinprincp6u29k
  • 02-10-2018
  • Mathematics
contestada

Which value for x makes the open sentence true? 8 + 3 • x = 2 squared + x squared Question 1 options: 5 4 3 2

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 02-10-2018

8 + 3 *X = 2^2 + X^2

Simplify:

8 + 3x = 4 +x^2

Subtract x^2 from each side:

8 + 3x - x^2 = 4

subtract 4 from each side:

8 + 3x -x^2 -4 = 0

Simplify:

3x - x^2 +4 = 0

Factor

-(x-4)(x+1) =0

X = 4, -1

The answer would be 4.


Answer Link
Аноним Аноним
  • 02-10-2018

Hi Slyther,

Answer - B. 4

8 + 3 * x = 2^2 + x^2

8 + 3 x 4 = 2^2 + 4^2

8 + 12 = 4 + 16

20 = 20

Answer Link

Otras preguntas

What is 2/6 times 1/6
What is the largest number that has the factors of 3, 4 and 5 between 57 and 250?
For what values of the variable does the following expression make sense: (squareroot) 1+3a/25
Malika is 1.45 meters tall. At 10 a.m., she measures the length of a tree's shadow to be 32.25 meters. She stands 27.5 meters away from the tree, so that the ti
Espanol Ivanna is driving to Seattle. Let y represent her distance from Seattle (in miles). Let x represent the time she has been driving in hours). Suppose tha
When Bethany saw Timmy before her surgery, what did she say over and over?
At the end of March, Jerry bought a plant that was $16.2 inches tall. During April, the plant grew 2] inches, and during May, the plant grew another 2 inches. H
1: solve 2/5×1/3-3/7×5/9+2/5×1/82:2x-3=x+2​plesswe
What is 12x12 inch Square and 3/4 inch pixels?
if sinθ/secθ =1/2, find sinθ+secθ/sinθ-secθ