A certain drug is administered once a day. The concentration of the drug in the patient's bloodstream increases rapidly at first, but each successive dose has less effect than the preceding one. The total amount of the drug (in mg) in the bloodstream after the first dose is 42 mg. The amount after the second dose is 10.5 mg. The amount after the third does is 2.625 mg. Write an explicit formula to represent this scenario.
ANSWER DOWN BELOW
recursive and explicit formulas with sequences
A. f(n) = -30n + 72
B. f(n) = 42(1/4)^n-1
C. f(n) = 30n + 12
D. f(n) = 42(4)^n-1

Answers

Answer 1

I think b makes the most sense to me

Related Questions

on the left side of the triangle, it says 12 cm, for the right side of the triangle, it says 17 cm, below the triangle, it says 12 cm. find the area of the triangle and answer the question in square cm.

Answers

Answer:

The area of this triangle is 72 cm².

Step-by-step explanation:

We know all 3 lengths of this triangle (12, 12, 17), but all we need to answer this question is sides a and b (12, and 12).

The formula to find the area of a triangle is A = bh/2. Substitute b and h for 12 and 12 respectively.

A = (12 * 12)/2

A = 144/2

A = 72 cm²

The area of the triangle is 72 cm².

which comparison is true?
62.1 >63
8 625

Answers

Answer:

well the first one is inncorrect

Step-by-step explanation:

First one is incorrect

Please Hurry And plz explain
(4)^5*(4)^-2

Answers

Answer:

Step-by-step explanation:

4^5 is 1024

(4)^-2 is 0.0625 or 1/16

So 1/16 * 1024 is 64

Answer:64

Step-by-step explanation:

4^5 is 4 multiplied by itself 5 times.

so: 4^5 = 1024

(4)^-2 = 1/16 or 0.0625

1024 * 0.0625 = 64

Find the difference.
7 1/2 - 6 3/10

A. 13 4/5
B. 1 1/4
C. 1 1/5
D. 1 1/10

Please make sure your answer is 99.9% correct

Answers

Answer:

I'm almost certain it's 1.2

The answer is A. 13 4/5!! I know that’s correct!

A runner has run 1.192 kilometers of a 10-kilometer race. How much farther does he need to run to finish the race?

I flaked

Answers

answer is 8.08 kilometers

Answer:

Hello person :D

Your answer should be:

8.808

Step-by-step explanation:

I would highly appreciate a brainliest!

Have a wonderful day!

The sum of two numbers is 10. The larger number is 4
times the smaller number.

The system of equations used to represent this
scenario is y = -x + 10 and y = 4x.
What is the larger number?
4
6
8
10

Answers

Answer:

Step-by-step explanation:

I've taken test

it would be 8
8 the largest number

How are each of the following percent applications different, and how are they the same? Solve each problem, and then compare your solution process for each problem.

a. Silvio earns 10% for each car sale he makes while working at a used car dealership. If he sells a used car for $2,000, what is his commission?

b. Tu’s family stayed at a hotel for 10 nights on their vacation. The hotel charged a 10% room tax, per night. How much did they pay in room taxes if the room cost $200 per night?

c. Eric bought a new computer and printer online. He had to pay 10% in shipping fees. The items totaled $2,000. How much did the shipping cost?

d. Selena had her wedding rehearsal dinner at a restaurant. The restaurant’s policy is that gratuity is included in the bill for large parties. Her father said the food and service were exceptional, so he wanted to leave an extra 10% tip on the total amount of the bill. If the dinner bill totaled $2,000, how much money did her father leave as the extra tip?

Answers

I think it would be choice c

Write a story that can be represented by the equation

y = x + 1/4xy=x+1/4x

Answers

Answer:

1=y/x

Step-by-step explanation:

Because 1/4xy=x+1/4x=1=y/x

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