Mathematics, 21.07.2019 00:30 amcd2002
Two points move along a circle of length 120m with a constant speed. if they move in different directions, then they meet every 15 seconds. when going in the same direction, one point catches up to the second every 60 seconds. find the speeds of the points.
Answers: 2
Mathematics, 21.06.2019 20:30
Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?
Answers: 1
Mathematics, 21.06.2019 21:00
Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1β0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.
Answers: 1
Two points move along a circle of length 120m with a constant speed. if they move in different direc...
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