Question and answer
Amanda is taking a quiz that consists of five multiple choice questions, each having three answers from which to choose. If she guesses on each question, what's the probability that Amanda will get 100% on the quiz?
Question
Asked 4/21/2014 4:28:03 PM
Updated 4/21/2014 8:09:17 PM
3 Answers/Comments
This conversation has been flagged as incorrect.
Flagged by yeswey [4/21/2014 8:04:37 PM]
Get an answer
Original conversation
User: What is the equation of the line, in general form, that passes through point (-1, -1) and is parallel to the line whose equation is x + y = 3? x - y + 2 = 0 x+ y - 2 = 0 x + y + 2 = 0

User: Amanda is taking a quiz that consists of five multiple choice questions, each having three answers from which to choose. If she guesses on each question, what's the probability that Amanda will get 100% on the quiz?

Weegy: 1/15 right because 1/3 is the chance and there is five so 3 times five is 15
supernike|Points 610|

User: Write the equation of a circle whose center is at the origin and that contains the point (-3, 0).

Weegy: r^2 = (x+3)^2 + y^2
Beniabon13|Points 20|

User: If (x + 1)(x - 5) = -9, then which of the following statements is true? x + 1 = 0 or x - 5 = 0 x + 1 = -9 or x - 5 = -9 x - 2 = 0

Question
Asked 4/21/2014 4:28:03 PM
Updated 4/21/2014 8:09:17 PM
3 Answers/Comments
This conversation has been flagged as incorrect.
Flagged by yeswey [4/21/2014 8:04:37 PM]
New answers
Rating
3
The equation of the line, in general form, that passes through point (-1, -1) and is parallel to the line whose equation is x + y = 3 is: x + y + 2 = 0
Added 4/21/2014 8:04:25 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/21/2014 8:27:16 PM]
3
The equation of a circle whose center is at the origin and that contains the point (-3, 0) is x^2 + y^2 = 9

Added 4/21/2014 8:07:42 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/21/2014 8:17:14 PM]
3
(x + 1)(x - 5) = -9
x^2 - 5x + x - 5 = -9
x^2 - 4x + 4 = 0
(x - 2)^2 = 0
x - 2 = 0

If (x + 1)(x - 5) = -9, then the true statements is: x - 2 = 0.
Added 4/21/2014 8:09:17 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/21/2014 8:17:17 PM]
Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
t Object]User: x + y = k x - y = k The solution to the system shown is _____. (0, k) (2, 2) (k, 0)
Weegy: Let's use the reduction method by adding them up, you'll cancel out the y's, leaving you with x=k Now if x=k, let's replace k by x x-y=k x-y=x x-x=y 0=y Since x = k and 0 = y, [ we'll say that the solution to this system is (K,0) ] User: 3x - 4y = 7 3x + 2y = -5 When the second equation is subtracted from the first, the resulting equation is _____. -6y = -12 -6y = 12 -2y = -12 2y = 12 Weegy: -6y = 12 User: 5x + y = 6 5x + 3y = -4 The y-coordinate of the solution to the system shown is ___. -5 -1 1 Weegy: that would be -5 User: Given the system of equations, what is the x-coordinate of the solution? y = 3 - 1/2x 3x + 4y = 1 22 -17/2 -11 (More)
Question
Updated 4/14/2014 8:42:52 PM
1 Answer/Comment
t Object]User: A boat makes a 120-mile trip downstream in 3 hours but makes the return trip in 4 hours. What is the rate of the current? 3 mph 4 mph 5 mph User: Solve the system algebraically. 3x - 2y - 1 = 0 y = 5x + 4 What is the solution? {(-9/7,-17/7)} {(9/7,17/7)} {(9/7,-17/7)}
Weegy: Y = 5X + 4 since: 3X - 2Y - 1 = 0 3X - 2(5X + 4) - 1 = 0 3X - 10X - 8 - 1 = 0 -7X - 9 = 0 so: X = - 9/7 Y = 5( - 9/7 ) + 4 Y = - 45/7 + 28/7 = - 17/7 answer is A.{(-9/7,-17/7)} User: 2x - y = 5 x + 3y = 7 What is the value of the y-determinant? 7 9 22 Weegy: Did you mean the determinant of coefficients? 2 -1 1 3 determinant = 2(3) - (-1)(1) = 6+1=7 source: yahoo User: The system shown has _____ solution(s). y = 1/2x + 1 2y - x = 2 no one infinite User: Which of the following equations is equivalent to 1/2x - 2/3y = 5? x - 2y = 30 4x - 3y = 30 3x - 4y = 30 Weegy: 3x - 4y = 30 User: 2x - y = 5 x + 3y = 7 What is the second row of entries for the system determinant? 0, 3 1, 3 3, 7 Weegy: Did you mean the determinant of coefficients? 2 -1 1 3 determinant = 2(3) - (-1)(1) = 6+1=7 source: yahoo User: A boat makes a 120-mile trip downstream in 3 hours but makes the return trip in 4 hours. If b = the rate of the boat in still water and c = the rate of the current, which of the following equations represents the trip upstream? 3(b - c) = 120 4(b - c) = 120 4(b + c) = 120 Weegy: A.3(b - c) = 120 User: In a certain clothing store, 6 shirts and 3 ties cost \$79.50, and 3 shirts and 2 ties cost \$41. Determine the cost of each shirt. \$10.00 \$11.00 \$12.00 Weegy: 3s + 5t = 60 ......(1) 2s + 3t = 39 ......(2) (1)*2 - (2)*3: t = 3, s = (39 - 3t)/2 = 15 Answer: Shirts cost \$12 each, and ties cost \$3 each. User: Solve the system algebraically. Check your work. 5x + 2y = 10 3x + 2y = 6 Make sure there are NO SPACES in your answer. Be sure to include a comma. Weegy: The solution for 5x + 2y = 10, 3x + 2y = 6 is (2, 0) (the value of x is 2 and the value of y is zero) User: In which of the following data sets is the mean equal to the mode? 4, 4, 4, 6, 6 4, 5, 5, 5, 6 3, 3, 4, 6, 7 Weegy: 4, 5, 5, 5, 6 is data set where the mean is equal to the mode. (More)
Question
Expert Answered
Updated 5/21/2014 9:57:28 PM
1 Answer/Comment
Skylar's grades on four math tests are 85, 78, 77, and 69. What does Skylar need to score on the next test in order to have a mean score of 80? 83 90 91
Weegy: Skylar needs to get a score of 91 on the next test in order to have a mean score of 80. (More)
Question
Updated 4/15/2014 7:49:14 PM
0 Answers/Comments
What is plagiarism?
Weegy: Plagiarism is getting the work of someone else and claim it as your own. It is a big no-no in university life and it could mean expulsion. [ Sometimes people just get to tired to search and discover for themselves that they actually steal someone's idea to save their butts. How hard can it be? considering all the innovation that we have today in terms of researching. It's a big lie when we say that everything that can be discovered already exists. On the contrary, there are a lot of things that we need to know. The world continuously moves and everything changes. Don't think you can't be caught when you plagiarize. Cheaters never win. ] User: What are the consequences of plagiarism? Weegy: The major consequence of plagiarism is that people who engage in it hurt themselves. [ Good research and writing involve a host of skills: for a start, evaluating sources, taking careful notes, selecting appropriate quotations, paraphrasing, and giving credit to others for their ideas and words. Students who plagiarize may never learn these skills, and life in college and beyond can be difficult without them. ] User: Plagiarism damages reputations and relationships. True False (More)
Question
Updated 4/22/2014 10:23:00 PM
1 Answer/Comment
28,197,037
questions answered
*
Get answers from Weegy and a team of really smart live experts.
Popular Conversations
During the flood recovery process, you should empty all containers ...
Weegy: yes to kill all the bacteria in the Container.
1/14/2019 12:57:41 AM| 4 Answers
Which one of the following choices is a reason to have good posture?
Weegy: Knees that extend backward too much is a reason to have good posture.
1/15/2019 11:06:43 AM| 3 Answers
Granite is a ________ that contains the mineral quartz. a. mineral b. ...
Weegy: Granite is a rock that contains the mineral quartz. User: Process by which sediment is removed from its ...
1/16/2019 3:15:10 PM| 2 Answers
_______ are on chromosomes in the nucleus of a cell
Weegy: Eukaryotic cells have a nucleus which contains the cellular genes in the form of chromatin. User: When ...
1/9/2019 7:54:45 PM| 2 Answers
Is there anyone here who is a weegy expert but doesn't live in ...
Weegy: Hello. Weegy is not affiliated with PayPal, so they can't tell which country is not available to receive ...
1/10/2019 1:57:51 AM| 2 Answers
2(x + 1) – (–x + 5) –18.
Weegy: ? * 18.2 = 9.1 User: Michelle will be 72 years old in eighteen years. How old is Michelle now?
1/10/2019 12:49:24 PM| 2 Answers
S
L
Points 815 [Total 868] Ratings 4 Comments 775 Invitations 0 Offline
S
L
Points 770 [Total 798] Ratings 1 Comments 760 Invitations 0 Offline
S
R
L
R
P
R
P
R
R
R
R
P
R
P
P
Points 619 [Total 3319] Ratings 3 Comments 589 Invitations 0 Offline
S
L
Points 192 [Total 993] Ratings 2 Comments 162 Invitations 1 Offline
S
Points 87 [Total 87] Ratings 0 Comments 87 Invitations 0 Offline
S
Points 57 [Total 59] Ratings 0 Comments 57 Invitations 0 Offline
S
Points 52 [Total 52] Ratings 5 Comments 2 Invitations 0 Offline
S
Points 40 [Total 41] Ratings 0 Comments 20 Invitations 2 Offline
S
Points 23 [Total 23] Ratings 2 Comments 3 Invitations 0 Offline
S
L
R
P
Points 13 [Total 1396] Ratings 0 Comments 13 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.