isabella244 isabella244
  • 01-04-2019
  • Mathematics
contestada

Can someone pls help me out

Can someone pls help me out class=

Respuesta :

scribblesgalaxy
scribblesgalaxy scribblesgalaxy
  • 01-04-2019

Answer:

i think its .b.   sorry if im wrong

Step-by-step explanation:

Answer Link
wolf1728
wolf1728 wolf1728
  • 01-04-2019

Answer:

A) 5x -4y =1

B) 4x -2y = 8

Using Cramer's Rule of detrminants

a = 5 b = -4  e=1

c = 4 d = -2  f = 8

denominator = 5 * -2 -(4 *-4) = 6

x = 1 * -2 [-(8 *-4)] / denom = 30 / 6 = 5

y = 5 * 8 -(4 * 1) / denom = 36 / 6 = 6

Step-by-step explanation:

Answer Link

Otras preguntas

Divide 80 in a ratio of 3:2
Ana is constantly in a hurry trying to meet deadlines what is the risk factors and recreational activity
which equation shows the point-slope form of the line that passes through (3, 2) and has a slope of 1/3 ?
the united states sent forces to what area of tbd world in the mid-1990s to stop ethnic cleaning
Given: x y = 10. if x = -21, what is y ?
which document, signed by king john in 1215, was important for the united states government? a. the preamble b. the constitution c. the magna carta d. the bill
Which of the following is NOT true or an atom? A. They are composed of molecules. B. They combine to form compounds. C. They make up element. D They are extr
he Fifth Amendment guarantees that no person can be made to witness against himself in court. This means that a person cannot be forced to speak about or confes
What is the most crippling form of arthritis called?
the legs of a right triangle are 18 cm and 80 cm. what is the length of the hypotenuse? 82 cm 85 cm 89 cm 98 cm