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

Spencer took $21 with him to the mall. At the music store he spent 3/7 of his money on a DVD. How much money did Spenser have left after he bought the DVD?
THEORETICALLY, HOW MANY MOLES OF CARBONIC ACID WILL BE PRODUCED BY THE 3.00 G SAMPLE OF NaHCO3?
How are the mantle-asthenosphere and the asthenosphere-lithosphere alike?
how do i find the factors of 48
96 is 160% of what number?
What are prepositions, and how are they used?
Please I need help!!! My grade depends on it! There are ten cards. Each card has one number between 1 and 10, so that every number from 1 to 10 appears once. I
Why is digestion and absorption in the small intestine important
What is the equation in point-slope form of the line passing through (−2, 1) and (4, 13)? y − 1 = −2(x − 4) y − 1 = 2(x 2) y − 13 = −2(x 2) y − 13 = 2(x 4)
What is the value of 3 in 639?