Mathematics

Mathematics, 27.03.2020 19:57, kendallnowell18

The amount of a radioactive substance decreases by 10% every
12 hours. Currently the amount of substance is 100 grams. If n is
a whole number, which expression represents the number of
grams of substance left n days from now?
A.100(0.81)^n
B.100(1.1)^2n
C.100(0.81)^n/2
D.100(0.8)^n

answer

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 19:00, Lindy1862

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Answers: 1

Mathematics, 21.06.2019 19:00, mcccreamullinsr

How can you tell when x and y are not directly proportional?

Answers: 1

Mathematics, 21.06.2019 21:20, andybiersack154

52 cm radius = diameter = area = circumference = circumfer

Answers: 1

Mathematics, 21.06.2019 22:30, NearNoodle23

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.

Answers: 1

Do you know the correct answer?

The amount of a radioactive substance decreases by 10% every
12 hours. Currently the amount of...

Questions in other subjects:

Konu

Mathematics, 18.11.2019 21:31

Each light bulb at hotel california is either incandescent or fluorescent. at a certain moment, forty percent of the incandescent bulbs are switched on, and ninety percent of the f...

Konu

Business, 18.11.2019 21:31

Domino company uses the percent of receivables method to estimate uncollectible accounts expense. domino began 2016 with balances in accounts receivable and allowance for do...

Konu

Physics, 18.11.2019 21:31

Draw a picture of the crt with an undeflected electron beam. since you will not be using electric fields, you do not need to include the deflection plates. draw a coordinate axis o...

Konu

Mathematics, 18.11.2019 21:31

The height (in inches) of men at uh is assumed to have a normal distribution with a standard deviation of 3.6 inches. the height (in inches) of women at uh is also assumed to have...

Konu

Social Studies, 18.11.2019 21:31

During mating season, all male peacocks display their elegant arrangement of feathers in order to attract a mate. this behavior, in which they engage automatically any time they ar...

Konu

Social Studies, 18.11.2019 21:31

College students signed up to be subjects in a psychology experiment. when they arrive, they are told that interviews are running late, and they are left in a waiting room. the exp...

Konu

Physics, 18.11.2019 21:31

Astudent is experimenting with a battery, three identical light bulbs, and some wire. first, she creates a circuit with the light bulbs in series, and next, in parallel, and observ...

Konu

Business, 18.11.2019 21:31

Jiminian clinic uses client visits as its measure of activity. during march, the clinic budgeted for 3,700 client-visits, but its actual level of activity was 3,660 client-visits....

Konu

Biology, 18.11.2019 21:31

Which structure is common to plant and animal cells?...

Konu

Mathematics, 18.11.2019 21:31

Asimple random sample of 120 vet clinics in the midwest reveals that the vast majority of clinics only treat small pets (dogs, cats, rabbits, etc.) and not large animals (cows, hor...

Other tasks in the category: Mathematics More task