Angle e=88 this is because a straight line is always equal to 180. So 180-92 is equal to 88
1) n(6;1;-1)=n(A;B;C), point A(2;9;4)=A(x₀;y₀;z₀);
2) common view for a plane according the conditions is: A(x-x₀)+B(y-y₀)+C(z-z₀)=0;
3) after substituted coordinates: 6(x-2)+(y-9)-(z-4)=0; ⇒ 6x+y-z-17=0.
5x-2y = -10
Multiply by 6
= 30x -12y=-60
3x+6y = 66
Multiply by 2
= 6x+12y = 132
So
30x-12y=-60
6x+12y=132
Add those variables
36x= 72
X= 2
This would help
Answer:
a = -1/4
Step-by-step explanation:
Substitute the given solution into the equations
2x + y = 8
2(2a) + (9) = 8
4a + 9 = 8
Rearrange to get a alone
4a = 8 - 9
4a = -1
a = -1/4
2a = 2(-1/4) = -1/2
Solution = (-1/2, 9)