Question and answer
Classify the following change as physical or chemical: A match lights when struck. A. Physical change B. Chemical change
Lighting a match is a chemical reaction . The reaction starts when a match head
Expert answered|anithasri|Points 40|
Question
Asked 1/5/2013 12:08:44 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
Which of the following points is on the graph of the equation y = x2 ? A. (-2, 4) B. (-5, 10) C. (5, 10) D. (4, 8)
Weegy: best answer is A. (-2, 4) (More)
Question
Expert Answered
Asked 12/31/2012 10:47:41 AM
0 Answers/Comments
Solve the quadratic equation. 2x^2 = 32 A. x = ±4 B. x = 2 and x = 32 C. x = 1 and x = 16 D. x = ±2
Weegy: 2x^2 = 32; x^2 = 32/2; x^2 = 16; x = ±4 (More)
Question
Expert Answered
Updated 54 days ago|8/31/2014 6:26:33 PM
0 Answers/Comments
Solve for x: (2x - 4)2 = 1 A. 2, 3 B. 3/2, 5/2 C. 3/2, 3/5 D. 3/2, -5/2
Weegy: The answer is A. 2,3. (More)
Question
Expert Answered
Updated 84 days ago|8/1/2014 12:40:07 PM
1 Answer/Comment
(2x - 4)^2 = 1;
4x^2 - 16x + 16 = 1;
4x^2 - 16x + 16 - 1 = 0;
4x^2 - 16x + 15 = 0;
(2x - 3)(2x - 5) = 0;
2x - 3 = 0; 2x = 3; x = 3/2;
2x - 5 = 0; 2x = 5; x = 5/2;
Solutions: x = 3/2 or x = 5/2
Added 84 days ago|8/1/2014 12:40:04 PM
This answer has been confirmed as correct, not copied, and helpful.
What is the range of y = -3x2 + 2? A. y = -3 B. y = 2 C. y = 2 D. y: all real numbers
Weegy: Solution : (4x^2 ? 2x + 3) ? ( -3x^2 + 2x ? 5) 4x^2 ? 2x + 3 + 3x^2 - 2x + 5 = 7x^2 - 4x + 8 (answer) User: What is the range of y = -3x2 + 2? A. y = -3 B. y = 2 C. y = 2 D. y: all real numbers (More)
Question
Expert Answered
Updated 71 days ago|8/15/2014 2:41:47 AM
1 Answer/Comment
y=2 is the range of y = -3x2 + 2.
When x=0,the value of y the lagest. y=-3*0+2, y=2.
Added 71 days ago|8/15/2014 2:41:47 AM
17,968,492 questions answered
Popular Conversations
How is the infinitive phrase used in the sentence? Morning is the ...
Weegy: To go to college is my greatest ambition. The infinitive phrase "to go to college" is used as noun as subject. ...
10/24/2014 11:04:05 AM| 5 Answers
Simplify. n 6 · n 5 · n 4 ÷ n 3 · n 2 ÷ n User: Find the ...
Weegy: What is your question? User: Simplify. y 5 ÷ y 3 · y 2 Weegy: y^5 ? y^3 ? y^2; y^8 ? y^2 = y^6 User: ...
10/24/2014 11:04:16 AM| 4 Answers
Brandon's huge collection of paper cranes come from his origami ...
Weegy: The correct sentence is: Brandon's huge collection of paper cranes comes from his origami hobby. User: ...
10/24/2014 7:48:30 AM| 3 Answers
William H. Crawford represented which ...
10/24/2014 7:25:41 AM| 2 Answers
Is the sentence compound, or is it simple with a compound verb? You ...
Weegy: Verb is a word (part of speech) that in syntax conveys an action (bring, read, walk, run, learn), an occurrence ...
10/24/2014 7:51:29 AM| 2 Answers
Weegy Stuff
S
L
1
1
1
1
L
1
L
Points 2605 [Total 14980]| Ratings 0| Comments 2605| Invitations 0|Offline
S
L
1
L
P
C
1
P
C
1
L
Points 1628 [Total 11109]| Ratings 4| Comments 1588| Invitations 0|Offline
S
1
L
1
L
P
P
L
Points 896 [Total 13125]| Ratings 0| Comments 896| Invitations 0|Offline
S
L
Points 613 [Total 2012]| Ratings 0| Comments 613| Invitations 0|Offline
S
1
L
L
Points 505 [Total 6299]| Ratings 3| Comments 475| Invitations 0|Offline
S
Points 482 [Total 482]| Ratings 0| Comments 452| Invitations 3|Offline
S
Points 454 [Total 455]| Ratings 6| Comments 394| Invitations 0|Offline
S
Points 277 [Total 277]| Ratings 1| Comments 267| Invitations 0|Offline
S
P
C
L
P
L
1
Points 48 [Total 6282]| Ratings 0| Comments 48| Invitations 0|Offline
S
L
Points 34 [Total 3572]| Ratings 2| Comments 14| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.