Two different things u can do
Substitution:
X-9y=12
+9y +9y
X=9y+12
-3(9y+12)+9y=36
-27y-36+9y=36
+36 +36
-18y = 72
/-18 /-18
Y = -4
Or whatever this other I’ve is called
-3x-9y=36
-1(X-9y)=(12)-1
-3x-9y=36
-x+9y=-12
-4x=24
X= -6
You have the following expression:
To verify the identity, you have that the left side of the equation becomes:
(1 + cosx)(1 - cosx) = (1 - cos^2 x)
because of the product of an expression by its conjugate result in a difference of squares. Or simplfy by expanding the factors and simplying.
Next, you have:
1 - cos^2 x = sin^2 x
because the Pythagorean identity.
Then, the identity is verified.
<span>3x+5=20
=>3x=15
=>x=5
i am not sure what you are talking but its solving than here it is.
</span>
The given equation is in point-slope form.
The general form of an equation in point slope form is:
Here m is the slope and
and
are the coordinates of the point.
So in given equation the slope is 2/3, and the coordinates of point are (1,3)
Answer:
The function is nonlinear
Step-by-step explanation:
Given
x --- y
1 --- 6
2 --- 24
3 --- 54
4 --- 96
Required
Determine if the function is linear of not
A function is linear if the difference in the successive y values are the same for corresponding values of x
When x = 1; y = 6 and when x = 2; y = 24
When x = 2; y = 24 and when x = 3; y = 54
When x = 3; y = 54 and when x = 4; y = 96
Note that the calculated differences are not equal.
<em>Hence, the function is nonlinear</em>