1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ExtremeBDS [4]
3 years ago
8

A dose of a new pharmaceutical drug is decaying according to the half-life model f(t) = Ne-0.2174, where N is the dose

Mathematics
1 answer:
Rudiy273 years ago
6 0

Answer:

  14.7

Step-by-step explanation:

Perhaps your equation is ...

  f(t) = N·e^(-0.2174t)

We want f(6) = 4, so ...

  4 = N·e^(-0.2174·6) = N·e^-1.3044 ≈ 0.2713N

  N = 4/0.2713 = 14.7 . . . . milligrams

The dose amount was about 14.7 mg.

You might be interested in
The function f(x) = x^2 - 2x + 8 is transformed such that g(x) = f(x-2). Find the vertex of g(x).
Serjik [45]

Answer:

Step-by-step explanation:

Since g(x) is f(x-2), every time there is a "x" in the f(x) equation, substitute "x-2". So g(x) would be (x-2)^2-2(x-2)+8. Use the method of trial and error: substitute x as 1,-1, and 3, until you found the right vertex. The answer is B (3,7).

7 0
3 years ago
Joe has 17 coins, nickels and dimes, that total up to $1.25. How many nickels does he have?
kifflom [539]

Answer:

9 nickels

Step-by-step explanation:

He has 17 coins.

$1.25 is 12 dimes and 1 nickel. But that is only 13 coins.

$1.25 can only be 17 coins if there were 9 nickels and 8 dimes.


6 0
4 years ago
Another day. Another question... :)
lutik1710 [3]

im not sure but its 80 or 65



3 0
3 years ago
The number 75 can be written as the sum of the squares of 3 different positive integers. what is the sum of these 3 integers? 17
ioda

75=7^2+5^2+1^1\\\\ 7+5+1=13

6 0
3 years ago
The national mall is approximately 6,400,000 ft.². If an event organizer estimate the density at 4 ft.² per person, approximatel
Naddika [18.5K]

Answer:

1,600,000

Step-by-step explanation:

divide 6,400,000 by feet per person

3 0
3 years ago
Other questions:
  • 2y+2=4x-6 in slope intercept form
    9·1 answer
  • How many complex roots does the equation below have? X^6+x^3+1=0
    12·2 answers
  • What is 743×295 in standard algorithm
    6·1 answer
  • Need help with exponential functions quick <br> 30 points
    10·1 answer
  • What percent of 15 is 0.6?
    15·2 answers
  • The diagnoal of a rectangle is 25 inches and the width is 15 inches what is the length
    11·1 answer
  • Pilar made 6 quarts of orange marmalade to store in jars.
    15·2 answers
  • Factor completely:<br><br> x³ - 9x
    5·2 answers
  • Change 7 4/5 to an improper fraction
    7·2 answers
  • Refer to the following formula for expected payoff:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!