Answer:
480 ft2
Step-by-step explanation:
You multipy 4 by 2 by 2 by 10 by 3 and you get 480.
Hope this helps :)
The solution is (-4,4)
Explanation: just plug both equations into desmos; the solution is found by looking at where the graphs of 2x+y=-4 and y=-1/2x+2 intersect.
Sorry If I got it incorrect
x > 3
Subtract 3 from both sides
-4x + 3 - 3 < -9 -3
Simplify
-4x < -12
Multiply both sides by -1 (reverse the inequality)
(-4x) (-1) > (-12) (-1)
Simplify
4x > 12
Divide both sides by 4
4x/4 > 12/4
Simplify
x > 3
Answer:
Step-by-step explanation:
15
It looks like the 4th one is the one you want to investigate. There are two ways you could do it.
- You could remove the brackets
- You could substitute as in y^2 - 5y - 8 ie y = x^2 - 4.
I think the second way is easier to do. You will wind up with a quartic (x^4) the first way.
let y = (x^2 - 4)
Therefore z = y^2 - 5y - 6
This factors into
z = (y - 6)(y + 1)
Now put (x^2 - 4) in for y
z = (x^2 - 4 - 6)(x^2 - 4 + 1)
z = (x^2 - 10)(x^2 - 3)
So it looks like I either made the wrong guess, or I made a mistake.
Let's try the first one
Let y =x + 2
y^2+2y -8
=(y +4)(y - 2)
=(x+2 + 4)(x + 2 - 2)
=(x+ 6)(x)
Looks like the first one is the answer.
