jo9nnaP5iCharchann
jo9nnaP5iCharchann jo9nnaP5iCharchann
  • 09-08-2016
  • Mathematics
contestada

assume n is an integer and solve for n.

|2n - 3| = 5

a. {-4, -1}
b. {1, 1}
c. {-1, 4}
d. {4, 4}

Respuesta :

dalendrk
dalendrk dalendrk
  • 17-08-2016
|2n - 3| = 5 ⇔ 2n - 3 = -5 or 2n - 3 = 5    |add 3 to both sides

2n = -2 or 2n = 8    |divide both sides by 2

n = -1 or n = 4

Answer: c. {-1; 4}
Answer Link

Otras preguntas

Which statement best describes thomas paines use of evidence in the passage?
Which of the three branches has the power to make laws? Enforce laws? Determine if laws are broken?
the Articles of Confederation Congress couldn't raise an army because it had no power to a. Raise an army b. tax c. borrow d. appoint officers
What number divided by 6 equals 9
What law made it illegal to speak ill of the government?
Which statement correctly compares and contrasts the three stages of cellular respiration that occur in the presence of oxygen?
20 POINTS FOR ANYONE TO ANSWER CORRECTLY PLEASE HELP!!!!
What was life like for many freedmen in the South after the Civil War?
during the colonial period, which geographic feature presented the greatest barrier to the westward migration of american settlers
Emily has clearly stated to her boyfriend that she doesn't want to have sex, and she has offered alternatives for sharing time together. Nevertheless, her boyfr