Question and answer
Question not found
Ask a question
Not a good answer? Get an answer now. (Free)
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
A rubidium isotope has a half-life of almost 50 billion years. Given that scientists estimate Earth's age to be 4.6 billion years, what is the most likely percentage of parent to daughter isotopes of this element currently existing on Earth?
Weegy: C. 23.5?. Currently, Earth's tilt is closest to 23.5?. User: Which of the following processes causes the greatest loss of mass within an atom? A. Alpha decay B. Beta decay C. Electron capture D. Gamma emission Weegy: A. Alpha decay (More)
Question
Expert Answered
Asked 8/8/2012 11:53:37 PM
0 Answers/Comments
The half-life of carbon-14 is 5,730 years. How many grams of parent material will remain from a 100-gram sample of carbon-14 after 2 half-lives? A.75 B.6.25 C.12.5 D. 25
Weegy: A.75 User: Potassium-40 has a half-life of approximately 1.25 billion years. Approximately how many years will pass before a sample of potassium-40 contains one-fourth the original amount of parent isotope? a. 1.25 billion b. 2.5 billion c. 3.75 billion d. 5 billion Weegy: b. 2.5 billion (More)
Question
Expert Answered
Asked 8/9/2012 12:14:59 AM
0 Answers/Comments
You are given a box of 100 silver dollars, all facing "heads" up. You are instructed to shake the box 3 times; after each shake, you will remove all the dollars that are "heads up" before shaking again. You may keep all the dollars that are still tails up following the third shake. How many dollars will you most likely get to keep?
Weegy: 12 silver dollars. User: Scientists estimate Earth's age to be 4.6 billion years. Samarium has a half-life of approximately 106 billion years. From the present date, approximately how many more years must pass before a sample of samarium that was created at the beginning of Earth's history contains 50 percent of the original parent material? a. 1 billion b. 10 billion c. 100 billion d. 1,000 billion Weegy: c. 100 billion (More)
Question
Expert Answered
Asked 8/9/2012 12:10:35 AM
0 Answers/Comments
21,105,730 questions answered
Popular Conversations
Simplify 2(x - 4) + 7(x + 2). User: Simplify 2(x - 4) + 7(x + 2). ...
Weegy: 3(4x + 6) - 9x = 12x + 18 - 9x; = 3x + 18 User: Simplify 8 - (-5) - 4(-7). Weegy: 8 - (-5) - 4(-7) = 8 + 5 ...
5/27/2015 3:01:03 PM| 4 Answers
Simplify 11(2x + 3). 11x + 5 22x + 3 22x + 33
Weegy: 11(2x + 3) = 22x + 33 User: Simplify -3xy^3 + 7xy^3 + (-xy^3) + (-3xy^3). User: Simplify 2x + x. User: ...
5/27/2015 9:20:06 AM| 3 Answers
Simplify 8(3 - 2x). User: Simplify -2[9 - (x + 7)].
Weegy: -2[9 - (x + 7)] = -2(9 - x - 7) = -2(2 - x) = 2x - 4 User: Simplify -12x + 5x. -7 -7x -17x User: Simplify ...
5/27/2015 9:22:24 AM| 3 Answers
A line has a rise of 3 and a run of 12. What is the slope? User: A ...
Weegy: a.25 User: A line has a rise of 6 and a slope of 1/20. What is the run? 30 90 120 Weegy: A line has a rise ...
5/27/2015 12:32:19 PM| 3 Answers
Select all of the terms that are "like." xy2 2xy x2 -xy 2x2y User: ...
Weegy: 2xy, -xy, and xy are "like" terms. User: Simplify -4(N + 9). Weegy: -4(N + 9) = -4N - 36 User: Simplify ...
5/27/2015 9:17:54 AM| 2 Answers
Simplify (5b)(-3a). -35ab -15ab 2ab
Weegy: (5b)(-3a) = -15ab User: Simplify 9 - {x - (7 + x)}. User: What is the expression for "the difference ...
5/27/2015 9:27:00 AM| 2 Answers
Find the value of 21 - 18 ÷ 3 · 2. User: Simplify ...
Weegy: 6(-5)= -30 User: Simplify 6r · s · 4rt. 10rst 10r2st 24r2st Weegy: 6r · s · 4rt. = 24r2st. User: Evaluate ...
5/27/2015 9:35:13 AM| 2 Answers
Acid rain could be referred to as a _____________ phenomenon. a. ...
Weegy: Acid rain could be referred to as a natural phenomenon. User: When geographers observe moraines, they can ...
5/27/2015 11:21:09 AM| 2 Answers
Weegy Stuff
S
Points 759 [Total 767]| Ratings 1| Comments 749| Invitations 0|Offline
S
L
Points 706 [Total 1236]| Ratings 2| Comments 686| Invitations 0|Offline
S
1
Points 596 [Total 988]| Ratings 3| Comments 566| Invitations 0|Offline
S
L
P
Points 429 [Total 2906]| Ratings 1| Comments 419| Invitations 0|Offline
S
P
C
L
P
L
1
P
P
1
P
1
Points 248 [Total 8994]| Ratings 0| Comments 248| Invitations 0|Offline
S
Points 161 [Total 181]| Ratings 0| Comments 161| Invitations 0|Offline
S
1
L
L
Points 84 [Total 8267]| Ratings 0| Comments 84| Invitations 0|Offline
S
L
1
R
Points 80 [Total 1367]| Ratings 0| Comments 80| Invitations 0|Offline
S
L
Points 56 [Total 3810]| Ratings 2| Comments 36| Invitations 0|Offline
S
Points 13 [Total 13]| Ratings 0| Comments 13| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2015 Purple Inc.