(a)
![x^{2}](https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20)
= 400
(b)
![\sqrt{x^2} = \sqrt{400}](https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%5E2%7D%20%3D%20%5Csqrt%7B400%7D)
![x=20,-20](https://tex.z-dn.net/?f=x%3D20%2C-20)
(c) Only the positive solution makes sense because you cannot have a negative side length.
(d) Since one side of the painting is 20 inches, all four sides together will be 20*4 = 80 inches
Answer:
440 steps
Step-by-step explanation:
396 divided by 18 is 22
22 times 20 is 440
(I could be wrong )
Answer:
Complex number.
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
1/3x + 5, x = -6
1/3(-6) + 5
-6/3 + 5
-2 + 5
3