For each of the 16 characters, the number of possible outcomes is 10 numbers, 52 letters, or 10 special characters, totaling 72 possible values. The number of total different 16 characters passwords is:

$n = 72^{16}$

If you can test 1 trillion passwords per second, the number of passwords per year is:

$P = 10^{12} * 3,600*24*365\\P=3.1536*10^{19}$

The time in years that would take to test all passwords is:

$T=\frac{72^{16}}{3.1536*10^{19}}\\T = 1.65*10^{10}\ years$

Rounding to the nearest power of 10, it would take 10¹⁰ years

8 0

4 years ago

Yuson must complete 45 hours of community service. She does 3 hours each day. Which linear equation represents the hours Yuson h

Daniel [21]

Answer:

y=45-3x

Step-by-step explanation:

we want y, which is the number of hours left. to find this, we take:

hours left=total # of hours required - hours worked/day

so:

y=45-3x

(because x could be any number: 2 days, 3 days, etc.)

4 0

3 years ago

3 (x+4) = 3 a x = 5 b x = -5 c x = 3 d x = -3

LenKa [72]

Answer:

d. x= -3

Step-by-step explanation:

3(x+4) = 3

x+4= 3-3

x+4= 1

x= 1-4

x=-3

5 0

3 years ago