Mathematics, 29.05.2021 20:10 extra678

The half-life of Iodine-131 is approximately 8 days. Find the amount of Iodine-131 left from a 42 gram sample after 16 days. 1) 0.0006 grams

2) 21 grams

3) 10.5 grams

4) 34 grams

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 21:30, luckilyalexa

Your company withheld $4,463 from your paycheck for taxes. you received a $713 tax refund. select the best answer round to the nearest 100 to estimate how much you paid in taxes.

Answers: 2

continue

Mathematics, 22.06.2019 00:30, princeton

What should be done to both sides of the equation in order to solve -5m = -40? a) multiply by -5. b) divide by -5. c) multiply by -40. d) divide by -40.

Answers: 2

continue

Mathematics, 22.06.2019 03:30, alexgold3

Louis wants to give \$15 to kids who need school supplies. he also wants to buy a pair of shoes for \$39. how much money will he have to save for both?

Answers: 1

continue

Mathematics, 22.06.2019 04:30, RichardKing2376

Arandom sample of 15 observations is used to estimate the population mean. the sample mean and the standard deviation are calculated as 172 and 63, respectively. assume that the population is normally distributed. a. with 99 confidence, what is the margin of error for the estimation of the population mean? b. construct the 99% confidence interval for the population mean. c. construct the 95% confidence interval for the population mean. d. construct the 83% confidence interval for the population mean. hint: you need to use excel function =t. inv.2t to find the value of t for the interval calculation.

Answers: 1

continue

You know the right answer?

The half-life of Iodine-131 is approximately 8 days. Find the amount of Iodine-131 left from a 42 gr...