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
Hoochie [10]
3 years ago
14

Carlos has taken an initial dose of a prescription medication.

Mathematics
1 answer:
Marat540 [252]3 years ago
8 0

Answer:

3.48 hours

Step-by-step explanation:

The equation is:

M(t)=20 e^{-0.86t}

Where

M(t) is the amount of medication remaining in mg

t is the time it takes, in hours

The questions asks HOW LONG it will take to make the remaining medication to 1 milligrams (1 mg)??

We have to substitute M(t) with "1" and find the corresponding value of "t". We will use natural log to solve this. Shown below:

M(t)=20e^{-0.86t}\\1=20e^{-0.86t}\\0.05=e^{-0.86t}\\Ln(0.05)=Ln(e^{-0.86t})\\Ln(0.05)=(-0.86t)Ln(e)\\t=\frac{Ln(0.05)}{-0.86}\\t=3.48

<u>Note: </u> Ln(e) = 1

This means, the amount of time it will take is about 3.48 hours

You might be interested in
Which graph shows the solution to the following inequality? 4d-6&lt;18
Nadusha1986 [10]

Answer: C

<u>Step-by-step explanation:</u>

4d - 6 < 18

<u>      +6</u>   <u>+6 </u>

4d      < 24

    \frac{4d}{4} < \frac{24}{4}

       d < 6

Graph: ←----------------o 6

8 0
3 years ago
Read 2 more answers
Find the slope of the graphed line.
spin [16.1K]

Answer:

-6/3

Step-by-step explanation:

Move down 6 from the top point.

Then move right 3 to the bottom point.

7 0
2 years ago
Identify the axis of symmetry and vertex of f(x) = –2x2 –2x–1.
Leya [2.2K]

<span>Given the quadratic equation: f(x) = -2x^2 - 2x - 1, the axis of symmetry can be obtained by finding the line that divides the function into two congruent or identical halves. Thus, it should pass through the vertex and is equal to the x-coordinate of the vertex. </span>

<span>Note that a quadratic equation in standard form: y = ax^2 + bx + c, has the vertex located at (h,k) where, h = -b/2a and k is determined by evaluating y at h. In this case, a = -2, b = -2, thus, h = -0.5, k = 0.5. Thus, the vertex is located at (-0.5, 0.5) and the axis of symmetry is at x = -0.5. </span>

4 0
3 years ago
Read 2 more answers
What is 100 divided by the divine right of 10 to the power of 7
miss Akunina [59]

Answer:

I look it up in go.o.gle and found this answer

1e-47

8 0
2 years ago
What is the equation of the axis of symmetry for the function shown below? y-2=-(x+5)^2?
BigorU [14]
The axis of symmetry is x = -5
8 0
3 years ago
Other questions:
  • Si x = 5 entonces 3x – 10 =<br><br>​
    5·1 answer
  • What is the rule of 72
    15·1 answer
  • What is 7/10 - 1/4 (fraction)
    13·1 answer
  • I need help on this
    13·1 answer
  • A family is ordering grass sod for a portion of their backyard as shown in the diagram. How many square yards of grass sod do th
    11·2 answers
  • Simplify the expression by combining like terms. 22+5−4+7−8
    7·1 answer
  • What is the factored form of 8x2 + 12x?
    7·2 answers
  • A charter school did a local beach cleanup. They collected a total of 55 pounds of plastic bottles and aluminum cans. The Califo
    11·1 answer
  • Combine like terms and simplify the expression. 9x + 6 -3
    12·2 answers
  • Hello can someone Help? It math I would really appreciate! But please please DO NOT ANSWER IF ITS A LINK CALLED BIT.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!