Mathematics, 06.10.2019 03:00 cheath104
Asample originally contains 16 grams of a radioactive isotope. after 36 days, 14.8 grams of the isotope remain in the sample. what is the half-life of the isotope? enter your answer in the box. round your answer to the nearest day.
Answers: 2
Mathematics, 21.06.2019 18:50
Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5
Answers: 1
Mathematics, 21.06.2019 19:30
Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?
Answers: 1
Mathematics, 21.06.2019 20:30
Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.
Answers: 3
Asample originally contains 16 grams of a radioactive isotope. after 36 days, 14.8 grams of the isot...
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