Answer:
5/-6
Step-by-step explanation
use rise/run to get 4-(-1)/-5-1 to get 5/-6
Answer: d1 is 50, c2 is 21/25
I think they all are right are you not confident about one ...? I can explain it to you
Answer:
3 -1 -2
5 1 6
Step-by-step explanation:
An augmented system has the coefficients for the variables and then the solution going across
Rewriting the equations to get them in the form
ax + by = c
-3x+y =2
3x-y =-2
5x+y = 6
The matrix is
3 -1 -2
5 1 6
472
17
x-------------------
3304
4720
plus this numbers answer is 80.24
