Mathematics, 07.10.2019 18:20 zylisebell635
Aliving specimen in equilibrium with the atmosphere contains one atom of 14c (half-life = 5730 yr) for every 7.7 ✕ 1011 stable carbon atoms. an archeological sample of wood (cellulose, c12h22o11) contains 22.2 mg of carbon. when the sample is placed inside a shielded beta counter with 88.0% counting efficiency, 811 counts are accumulated in one week. assuming that the cosmic-ray flux and the earth's atmosphere have not changed appreciably since the sample was formed, find the age of the sample.
Answers: 3
Mathematics, 21.06.2019 19:20
When are triangles considered similar? a. corresponding angles are equal andcorresponding sides are proportionalb. corresponding angles are proportional andcorresponding sides are equalc. corresponding angles are equal orcorresponding sides are proportionald. corresponding angles are proportional orcorresponding sides are equal select the best answer from the choices providedmark this and retumsave and exitnext
Answers: 2
Mathematics, 21.06.2019 21:30
Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50
Answers: 3
Mathematics, 22.06.2019 01:30
Have you ever been in the middle of telling a story and had to use hand gestures or even a drawing to make your point? in algebra, if we want to illustrate or visualize a key feature of a function, sometimes we have to write the function in a different form—such as a table, graph, or equation—to determine the specific key feature we’re looking for. think about interactions with others and situations you’ve come across in your own life. how have you had to adjust or change the way you represented something based on either the concept you were trying to describe or the person you were interacting with? explain how the complexity or layout of the concept required you to change your style or presentation, or how the person’s unique learning style affected the way you presented the information.
Answers: 1
Mathematics, 22.06.2019 05:00
Lena draws a square with an area that is greater than the area of rectangle b. what are two possible side lengths of lena's square? explain.
Answers: 3
Aliving specimen in equilibrium with the atmosphere contains one atom of 14c (half-life = 5730 yr) f...
Mathematics, 17.09.2020 23:01
Mathematics, 17.09.2020 23:01
Mathematics, 17.09.2020 23:01
Physics, 17.09.2020 23:01
Mathematics, 17.09.2020 23:01
Mathematics, 17.09.2020 23:01
Mathematics, 17.09.2020 23:01
Mathematics, 17.09.2020 23:01
History, 17.09.2020 23:01
Mathematics, 17.09.2020 23:01
Biology, 17.09.2020 23:01
Mathematics, 17.09.2020 23:01
English, 17.09.2020 23:01
Mathematics, 17.09.2020 23:01
History, 17.09.2020 23:01
Computers and Technology, 17.09.2020 23:01
Mathematics, 17.09.2020 23:01
Social Studies, 17.09.2020 23:01
Spanish, 17.09.2020 23:01
Mathematics, 17.09.2020 23:01