m3rk098 m3rk098
  • 22-04-2018
  • Mathematics
contestada

please help! posted picture of question

please help posted picture of question class=

Respuesta :

11beehshahbaz 11beehshahbaz
  • 22-04-2018
The matrix A is the coefficient matrix and contains the coefficients of all variables.

The coefficient of equation 1 are mentioned in row 1 and coefficients of equation 2 are mentioned in row 2.

So,

a = 5
c = 7
b = 3
d = -2

So,

a - b + c + d = 5 - 3 + 7 - 2 = 7
Answer Link

Otras preguntas

The base sequence ACTGAC A) could occur in both DNA and RNA. B) could occur in DNA but not in RNA. C) could occur in RNA but not in DNA. D) could occur in neith
(PLEASE HELP!!) Which statement about the Roman emperor Constantine is correct? A. He wrote his thoughts about life, called the Meditations. B. He legally reco
PLEASE HELP!!! THIS IS FOR 10 POINTS!!! Luke has a bag of 100 colored marbles. The bag has an equal number of green and blue marbles and an equal number of red
In a cold pack, an ___________ reaction draws heat from the surroundings. A. exothermic B. endothermic C. exergonic
How does satire focus on conduct in a secular society?
which type of shape can represent a two dimensional cross section of a sphere?
Which words in the sentence are adverbs? Often a pond seems somewhat quiet. Choose all answers that are correct. A. somewhat B. often C. quiet D. seems
how, when, where, did the crusades start?who started this?
I am useful for a fast source of energy. Am I a: Lipid Nucleic Acid Protein Carbohydrates
The difference of a number divided by 3 and 9 is equal to 8 .