Answer:
See below
Step-by-step explanation:
If an expression is not dependent on x, it simplified form must not contain x. To show that this is the case for (a) and (b) we need to simplify them and assess:
(a)
![(x-5)(x+8)-(x+4)(x-1)=\\=x^2-5x+8x-40-x^2-4x+x+4=-36](https://tex.z-dn.net/?f=%28x-5%29%28x%2B8%29-%28x%2B4%29%28x-1%29%3D%5C%5C%3Dx%5E2-5x%2B8x-40-x%5E2-4x%2Bx%2B4%3D-36)
Indeed, does not depend on x!
And (b)
![x^4-(x^2-1)(x^2+1)=x^4-x^4+x^2-x^2+1=1](https://tex.z-dn.net/?f=x%5E4-%28x%5E2-1%29%28x%5E2%2B1%29%3Dx%5E4-x%5E4%2Bx%5E2-x%5E2%2B1%3D1)
Again, does not depend on x.
Answer:
Translation down 8 units, and left 9 units
(I hope this was the answer you were looking for if not im sorry.)
Answer:
Total cost of the grill installment plan = 2290
Step-by-step explanation:
370 + 1920 = 2290
Answer: SU = 4(1) + 1 = 5
Step-by-step explanation:
Since T is on segment SU we know the whole is eqaul to the sum of it’s parts.
ST + TU = SU substitute
3x - 1 + 3x = 4x + 1 simplify
6x - 1 = 4x + 1 solve for x
2x = 2
x = 1
ST = 3(1) -1 = 2
TU = 3(1) = 3
SU = 4(1) + 1 = 5