This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A computer password is made up of four characters. Each character can be a capital letter (A through ... (Read 164 times)

bucstennis@aim.com

  • Hero Member
  • *****
  • Posts: 532
on: May 5, 2020

Question 1

A computer password is made up of four characters. Each character can be a capital letter (A through Z), a lowercase letter (a through z) or a digit (0 through 9).

How many passwords have 3 letters (uppercase or lowercase) and only one digit?
◦ 4 × 523 × 10
◦ 4 × 52× 10
◦ 523 × 10
◦ 52 × 51 × 50 × 10
◦ none of these

Question 2

A computer password is made up of four characters. Each character can be a capital letter (A through Z), a lowercase letter (a through z) or a digit (0 through 9).

How many passwords do not contain the uppercase letter O, the lowercase o, or the number 0?
◦ 624 - 3
◦ 594
◦ 59 × 58 × 57 ×56
◦ 62 × 25 × 25 × 9
◦ none of these
Excursions in Modern Mathematics ¦ Tannenbaum ¦ 9th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by bucstennis@aim.com on May 5, 2020

aliotak

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: May 5, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


bucstennis@aim.com

  • Member
  • Posts: 532
Reply 2 on: May 5, 2020
Great answer, keep it coming :)

Dnite

  • Member
  • Posts: 297
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

A phage cross made by doubly infecting the host cell with parental phages A phage cross made by doubly infecting the host cell with parental phages
An electrocardiogram (ECG, EKG) is a commonly used procedure in which the electrical events associat An electrocardiogram (ECG, EKG) is a commonly used procedure in which the electrical events associat
Chair made from tree Chair made from tree
Cylinder 1 slit signals the computer the piston position for cylinder 1. The 1-degree slits provide ... Cylinder 1 slit signals the computer the piston position for cylinder 1. The 1-degree slits provide ...
A backpressure tool can be made by using an oxygen sensor housing and using epoxy or braze to hold ... A backpressure tool can be made by using an oxygen sensor housing and using epoxy or braze to hold ...
Computer Models Computer Models
Video: How does an animal choose what food to eat?

For a complete list of videos, visit our video library