You would write .54 with a line across the 54 because that's the number repeating
R^3 + s^3 this is the sum of cubes
Answer:
x = -3, -5.
Step-by-step explanation:
(2x + 8)/6 = 1/3(x + 4)
Cross multiply:
(2x + 8)(x + 4) = 6 * 1/3
(2x + 8)(x + 4) = 2
2x^2 + 16x + 32 - 2 = 0
2x^2 + 16x + 30 = 0
x^2 + 8x + 15 = 0
(x + 3)(x + 5) = 0
x = -3, -5.
Replace,
x = y
Or
x = f(x)
then us stay:
x = 5y + 12
Isolate 5y
5y = x - 12
Dividing both the sides by 5
y = x/5 - 12/5
Then, replace y = f^-(x)
f^-(x) = x/5 - 12/5
Hope this helps