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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(1−0.2)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.
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Mathematics, 21.06.2019 23:00
Find the distance between the pair of points a(-1,8) and b(-8,4)
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Mathematics, 22.06.2019 00:30
Describe how to translate the graph of y=/x to obtain the graph of y=/x+5
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Mathematics, 22.06.2019 01:20
The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!
Answers: 1
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