Answer:
80,60,40
Step-by-step explanation:
The three angles of a triangle add to 180
Multiply the ratio by x
The angles are 4x, 3x, 2x
Add them together
4x+3x+2x = 180
Add like terms
9x = 180
Divide by 9
9x/9 =180/9
x = 20
The angles are 4x = 4(20) = 80
3x= 3(20) = 60
2x= 2(20) = 40
Let F(x) = x^2 + 2x -8
Adding 1 and - 1 at equation
F(x) = x^2 + 2x + 1 - 1 -8
Rewrinting the first 1 = 1^2
F(x) = x^2 + 2x + 1^2 - 1 - 8
Now look:
x^2 + 2x + 1^2 = ( x + 1)^2
Then,
F(x) = (x + 1)^2 -1 -8
F(x) = (x + 1)^2 -9
This is the answer !
If us to want.
(x + 1)^2 -9 = ( x+1)^2 - 3^2
= ( x+ 1 -3).(x +1 +3)
= ( x - 2).(x +4)
Answer:
-5/2x+3
Step-by-step explanation:
you reciprocate the slope since you are trying to find a line perpendicular.
From this m=2/5 to -5/2
then use the formula y-y1 =m(x-x1)
then you put in the points
y - - 2= -5/2(x- 2)
y+2= -5/2x +5
-2 -2
y= -5/2+ 3
Ok so what do we know about this problem? We know that we need to find E right? Ok so first of all we know it's 2xEx5 + 9785 + 9xEx4= what? Ok now just add and multiply the whole numbers. We have two Es aka X and x=1 so we have 2E so now we do 2x5=10+9785=9795+ 9x4=36 now we add 9795+ 36= Your answer 9831+2E
