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

Whitch Verb phrase is they WILL HAVE FINISHED
w+w+w+w+w+15-7 I got this wrong on a math question. I did 5w+8 = 13w ​
What factors of 24 add up to -4
Help me :,) Given the functions f(n) = 11 and g(n) = −2(n − 1), combine them to create an arithmetic sequence, an, and solve for the 30th term
the main reason for the cut in oil production by opec was its goal of maximizing oil profits through
oh, no! what is wrong with this car, Habtamu? i------- an accident. a, had b, have had c, had had d, was had
Heeeeelllp pleeeaaase ❤️
The length of each side of the square is represented by x-2 and the perimeter is 48 inches
Willetta was watching TV for 3600 seconds. How many hours was she watching TV?​
I’m stuck on this question all help will be appreciated!