Solve by elimination.
multiply the lower equation by negative 1.
-y=7x-21
-y+y=o
new equation is
7x+6-52=0
6-52 is -46
-7x=-46
divide by -7
x=6.57...
plug it back in
y= 7(6.57)+21
7*6.57= 46
y=46+21
y=67
(might be wrong, I tried)
Answer:
<XYZ = 117°
<XYW+ WYZ = 117°
(6x+44)+(-10x+65)= 117°
6x+44-10x+65= 117°
-4x+ 109= 117°
-4x= 117-109
-4x= 8
x= 8/-4
x= -2
<XYW= 6x+44= 6×-2+44= -12+44= 32°
<WYZ= -10x+65 = -10×-2+ 65= 20+65= 85°
Step-by-step explanation:
The corresponding homogeneous ODE is
with characteristic equation
with roots at and , so the characteristic solution is
For the non-homogeneous ODE, assume a particular solution of the form
Substituting and its derivatives into the ODE gives
Then the ODE has the general solution
I see two lines, a and b, one superimposed on top the other. In such a case, there is an infinite number of solutions.
Answer:
2u≤8⇒u≤4
Step-by-step explanation: