Answer:
d
Step-by-step explanation:
I think its d but I'm not quite sure
It is rational because it is not negative
Step-by-step explanation:
(root under) 2×3×3×4
(root under) 2×3×3×2×2
3×2 (root under) 2
6 (root under) 2
sorry i don't have the root under symbol, if you are confused it is the symbol that is at the first of your question.
Answer:
x^3 + 1/x^3 = 488
Step-by-step explanation:
- x^2 + 1/x^2 = 62
- x^2 + 1/x^2 + 2 = 64
- ( adding 2 in both sides )
- (x + 1/x ) ^2 = 64
- x + 1/x = 8
now,
- ( x+ 1/x ) ^ 3 = 512
- x^3 + 1/x^3 + 3 × x × 1/x ( x + 1/x )
- x^3 + 1/x^3 + 3 ( 8 )
- ( since x + 1/x = 8 )
- x^3 + 1/x^3 + 24 = 512
- x^3 + 1/x^3 = 488
hence, we got x^3 + 1/x^3 = 488
121.5 in. You divide 729 by 6 because their are 6 faces of the cube.
