Mathematics, 09.03.2021 04:50 jamiehills399
Element X decays radioactively with a half life of 14 minutes. If there are 490 grams
of Element X, how long, to the nearest tenth of a minute, would it take the element to
decay to 123 grams?
Answers: 1
Mathematics, 21.06.2019 17:20
Consider the expression below. 9 + 4(x + 2) – 3.1 select the term that best describes "3" in the given expression. o a. coefficient variable exponent constant
Answers: 2
Mathematics, 21.06.2019 20:50
Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?
Answers: 3
Mathematics, 21.06.2019 21:30
Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-responsequestion. there are 15 questions on the test and the students have been given 55 minutes to complete itwhich value could replace x in the table? 5507-m23-m8(15-m)8(15)-m
Answers: 2
Mathematics, 21.06.2019 22:20
The school track has eight lanes. each lane is 1.25 meters wide. the arc at each end of the track is 180. the distance of the home straight and the radii for the arcs in the 1st 4 lanes are given. s=85m r1=36.5m r2=37.75m r3=39m r4=40.25m part one: find the radii of lanes 5 through 8 of the track. show your work. part two: if max ran around lane one, how far did he run? show your work and explain your solution. part three: max wants to run a total of three laps around the track, choose two additional lanes (2-8) for him to run and find the distance around those two lanes. show your work and round to the hundredths. part 4: based on your lane choices in part three, what was the total distance max ran in the three laps around the track?
Answers: 2
Element X decays radioactively with a half life of 14 minutes. If there are 490 grams
of Element X,...
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