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3 years ago

HOWARD!!!!!! THE PHONE IS RINGING!!!!!!!!!

Computers and Technology

2 answers:

777dan777 [17]3 years ago

7 0

Answer:

i am confused

Explanation:

8_murik_8 [283]3 years ago

6 0

Answer:

okay...

Explanation:

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a password to a certain database consists of digits that cannot be repeated. if the password is known to consist of at least 8 d

BaLLatris [955]

Answer:

$\frac{10!}{2}mins$

Explanation:

12 seconds to try one combination will be equivalent to $\frac{1}{12}\times 60 = \frac{1}{5} \ mins$

Password contain at least 8 digit i.e. password can contain 8, 9, 10 digit.

Password cannot contain more than 10 digit because it will give room for repetition which it is clearly stated that digit cannot be repeated.

Possible digit that can be used: 9,8,7,6,5,4,3,2,1,0.

Total number of passwords combination possible for each position in 8 digit.

1st position = 10, 2nd position = 9, 3rd position = 8, 4th position = 7, 5th position = 6, 6th position = 5, 7th position = 4, 8th position = 3. Total number of passwords combination possible in 8 digit is equivalent to $\frac{10!}{2}$ .

Total number of passwords combination possible for each position in 9 digit.

1st position = 10, 2nd position = 9, 3rd position = 8, 4th position = 7, 5th position = 6, 6th position = 5, 7th position = 4, 8th position = 3, 9th position = 2. Total number of passwords combination possible in 9 digit is equivalent to $\frac{10!}{1}$ .

Total number of passwords combination possible for each position in 10 digit.

1st position = 10, 2nd position = 9, 3rd position = 8, 4th position = 7, 5th position = 6, 6th position = 5, 7th position = 4, 8th position = 3, 9th position = 2, 10th position = 1. Total number of passwords combination possible in 10 digit is equivalent to 10!.

Adding them up and multiplying by $\frac{1}{5} \ mins$ to get the total number of time needed to guarantee access to database = $[\frac{10!}{2}\times\ \frac{10!}{1} \times 10!] \frac{1}{5}\ mins = \frac{10!}{2}$

7 0

3 years ago

What is output if the user types in 8

Lady_Fox [76]

Answer: 8

And if you hold shift while typing it, it gives *

7 0

3 years ago

Why you think Operating System is pivotal in teaching and learning.

Elina [12.6K]

Answer:

An Operating System is pivotal in teaching and learning because:

1. It enables computer users to communicate with the hardware.

2. To run any computer programme successfully, the Operating System is basic.

3. It provides a smooth interface for teachers to use video conferencing or other conferencing systems in teaching their students.

4. The OS enables the launching of other learning packages on a computer system.

5. Students can install learning apps on their systems with the help of the OS.

Explanation:

An Operating System is a software which brings about easy communication with the hardware and enablea other programs to run on the computer easily. It provides basic functionality in systems were they are installed.

6 0

3 years ago

What is a hobbyist for engineering

Nimfa-mama [501]

I believe its when some one does engineering as a hobby.

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3 years ago

If Rahul wants to reduce his monthly spending, he should A get a better job. B reduce his fixed expenses. C reduce his variable

Ilia_Sergeevich [38]

Answer:

C. reduce his variable expenses.

Explanation:

There are two types of expenses: Variable expenses and Fixed Expenses. Fixed Expenses are the expenses that are fixed for every month and its difficult to reduce these expenses such as house rent, fuel or travel expenses to go for work, utility bills. These are almost fixed for every month and it is difficult to reduce them. On the other hand, variable expense are the expense that vary for every month and can reduce easily. These expenses includes eating outside at restaurants, clothing, enjoying and arranging parties.

Rahul should reduce his variable expense to reduce his spending. This could be the easier way to reduce the expenses and save more. First option is not valid as he want to reduce his spending, this shows that he is satisfied with his current job but worried about extra expenses each month. This is the reason option C is the better choice for him to reduce expense.

6 0

3 years ago