Mathematics, 16.04.2020 23:01 angie7665
The half-life of a radioactive substance is 12 days. After 11 days a sample of the substance has been reduced to a mass of 7 mg.
What was the initial mass (in mg) of the sample?
Round your answer to 2 decimal places as needed.
Using your answer from above, after how many days will there only be 0.1 mg of substance left?
Answers: 1
Mathematics, 21.06.2019 17:00, kathiewallentin1767
Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2
Answers: 3
Mathematics, 21.06.2019 20:00, ashl3yisbored
The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac
Answers: 3
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