If f(x) = 2x, then f ''(x) =

f''(x) = 0

Step-by-step explanation:

f ''(x) is second derivative of f(x)

derivative of x ^n = n x^(n-1)

derivative of constant = 0

so f''(x) is derivative of derivative

f'(x) =2 * 1 * x^(1-1) =2

f''(x) = 0

step-by-step explanation:

a cube has 6 sides

the probability of getting 5 on the first cube is 1/6 since only one side of the cube has 5 on it.

there are 3 sides of the cube with even number on it [2,4,6]

therefore the probability of getting even number is 3/6

for both events to happen together, the probability would be

1/6 x 3/6 = 12/36

which simplifies to 1/12