<span>X+2y=4 3z=-3 x+2y-z=1 becomes
</span><span>X+2y=4
3z=-3
x+2y-z=1
If 3z= -3, then z = -1.
Then we have
</span>X+2y=4 => x+2y = 4
3z=-3
x+2y-z=1 => x+2y-(-1)=1 => x+2y = 0
The graphs of these two straight lines never cross, so the system has NO SOLUTION.
Answer:
QR = 82.38 to nearest hundredth.
Step-by-step explanation:
As they are similar corresponding sides are in the same ratio.
So MN / QR = LM / QR
13/51 = 21/ QR
`3QR = 51*21
QR = 51*21/13
QR = 82.38
2x+15+x+20+30+25=180
3x+90=180
x=90/3
x=30
New angles
75,50,55
The smallest angle is 50