nnaomii
09.01.2020 •
Mathematics
Ineed with problems 2, 3, 5, 6, 11 and 12. i'm having trouble with those .
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Ответ:
#2:
(-1)+(1)=0
(this is true)
3(-1)-3(1)=0
-3-3=0
(this is false, it equals -6)
No
#3:
3(1)-2(2)=1
3-4=1
(this is false, it equals -1)
No
#5:
2(2)+(-4)=0
4-4=0
(this is true)
-(2)+2(-4)=10
-2-8=10
(this is false, it equals 6)
No
#6:
3(5)-4(3)=3
15-12=3
(this is true)
4(5)-3(3)=11
20-9=11
(this is true)
Yes
#11:
(I tried translate the graphs to text since I can't add pictures)
Line A crosses through the points (-2,4) and (4,-2)
Line B crosses through the points (-2,0) and (2,4)
Those two lines should intersect at (0,2)
This system is classified as consistent independent
#12:
Line A crosses through the points (-2,5) and (5,-2)
Line B crosses through the points (-2,0) and (0,-2)
Those two lines should NOT intersect, they're parallel to each other
The system is classified as inconsistent
I hope you get a good grade on your work! Be sure to take a short break during your work and do something you enjoy :)
Ответ:
53
Step-by-step explanation: