1. (f+g)(x)=7x^3-3x^3-8x^2+10x-2x-12=4x^3 - 8x^2 + 8x - 12
2. fg(x)=6-5(6x^2+x)=6-30x^2-5x
3. x^2+18x=44 | +36
x^2+18x+36=44+36
(x+6)^2=80
4. 2x+4y=20 |:2
x+2y=10
3x+2y=26
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3x-x=26-10
2x=16
x=16:2
x=8
x+2y=10
8+2y=10
2y=10-8
2y=2
y=2:2
y=1
5. 14x+y= -4
y= -4 -14x
y=3x^2-11x-4
-4 -14x = 3x^2-11x-4 |+4
-14x=3x^2-11x |+14x
0=3x^2+3x
3x(x+1)=0
x=0 or x=-1 is the solution
6. x^2-6x+8= x^2-2x-4x+8= x(x-2)-4(x-2)=(x-2)(x-4)
7. x^2-6x-27=0
x 1= (-6+V36+4*27)/2= (-6+V144)/2= (-6+12)/2=6/2=3
x2= (-6-12)/2= -18/2= -9
the point are ( 3,0) and (-9.0)
4x + 2x = < y
This is because the opposite sides (which is 4x and 2x) of a triangle add up to the exterior angle (<y).
We have to find X.
As you know:
because the angles of a triangle add up to 180.
When we add them:
The 9 is multiplying with the X. We want X only and not 9 with it. So, when we take 9 to the other side, it becomes divide. As a result, the answer to x is:-
Substitute value of x into 4x and 2x to find the exterior angle:-
4x:
2x:
When we add them we get the answer for angle Y:-
Therefore, we can conclude that:
Answer:
24.61
Step-by-step explanation:
first you have 7 and 3 and since 2x3 is 6 you get 2 and the remain will be 1 you then have your 3 and the closest one is 4 since 4x3 is 12 you subtract 13-12 which gives you 1 you bring your 8 down and will give you 18 and 6x3 is 18 so gives you the six then lastly is 3 which 3x1 is 3 so gives you the one hopefully that makes sense
Point slope form (slope intercept form) is y = mx + b
so first move the -x over to the other side
2y = x + 10
Divide 2 to both sides
2y/2 = y
(x + 10)/2 = x/2 + 5
slope intercept form
y = x/2 + 5
hope this helps
Answer:
Step-by-step explanation:
(x - 3)/2 = -1
x - 3 = -2
x = 1
(y + 7)/2 = -1
y + 7 = -2
y = -9
(1, -9) the other endpoint
