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
ohaa [14]
2 years ago
6

Wait times for a bus follow a uniform distribution over the interval 0 to 10 minutes. Determine the probability that a person wi

ll wait between 4.0 mi
Mathematics
1 answer:
natima [27]2 years ago
7 0

Answer:

P(x=4) = 0.4

Step-by-step explanation:

The density function of a continuous r.v is called a uniform distribution when between the end points any two sub intervals of the same length containing X, have the same probability.

f(x)= 1/ b-a          a≤ x≤ b

Here a = 0 and b= 10  but we want to know the probability of wait time between 4 minutes and 10 minutes

P (X=x) = (x-a) 1/(b-a)

P(x=4) = (4-0) 1/ 10-0

          = 4/10= 0.4

You might be interested in
V1 - 2 sin cos 0 = cos 0 - sin​
kramer

\sqrt{1 -  2sin θ \cosθ }  =  \sqrt{ {sin}^{2} θ   + {cos}^{2}θ  -  2 sinθcosθ } =  \sqrt{ {(cosθ   - sinθ) }^{2} }  = cosθ - sinθ

4 0
3 years ago
Under a microscope, ms. kapinski studies a culture with bacteria. as the number of hours progresses, ms. kapinski sees that the
velikii [3]

Answer:

Study 1 Answers:

1) 0.76 represents the multiplier of the bacteria, in this case it is decreasing by 24% because the formula for exponential decay is 1 - r.

2) 1290 represents the initial value, or before the study began.

Study 2 Answers:

1) 1180 is the initial value, or before the study began.

2) Study 1 started with more bacteria

3) Study 1 is experiencing exponential decay, while study 2 is experiencing exponential growth

Step-by-step explanation:

Exponential functions are in the form y=a(b)^x, where a is the initial value, b is the multiplier, and x represents inputs, such as hours after a bacteria study.

Any multiplier above 1.00 is experiencing exponential growth, meaning it grows gradually over time, and any multiplier below 1.00 is experiencing exponential decay, meaning it decreases in population over time.

5 0
2 years ago
the radius of a circular garden is 6 ft. if one foot of fencing cost 2.75 dollars, how much would you spend to completely surrou
PIT_PIT [208]

Answer:

103.67 dollars.

Step-by-step explanation:

The perimeter of the garden = 2 * π * 6 feet.

So the cost is 2.75 * 12π  dollars.

= 103.67 dollars.

3 0
3 years ago
Find the derivative.
krek1111 [17]

Answer:

\displaystyle f'(x) = \bigg( \frac{1}{2\sqrt{x}} - \sqrt{x} \bigg)e^\big{-x}

General Formulas and Concepts:

<u>Algebra I</u>

Terms/Coefficients

  • Expanding/Factoring

<u>Calculus</u>

Differentiation

  • Derivatives
  • Derivative Notation

Basic Power Rule:

  1. f(x) = cxⁿ
  2. f’(x) = c·nxⁿ⁻¹

Derivative Rule [Quotient Rule]:                                                                           \displaystyle \frac{d}{dx} [\frac{f(x)}{g(x)} ]=\frac{g(x)f'(x)-g'(x)f(x)}{g^2(x)}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

\displaystyle f(x) = \frac{\sqrt{x}}{e^x}

<u>Step 2: Differentiate</u>

  1. Derivative Rule [Quotient Rule]:                                                                   \displaystyle f'(x) = \frac{(\sqrt{x})'e^x - \sqrt{x}(e^x)'}{(e^x)^2}
  2. Basic Power Rule:                                                                                         \displaystyle f'(x) = \frac{\frac{e^x}{2\sqrt{x}} - \sqrt{x}(e^x)'}{(e^x)^2}
  3. Exponential Differentiation:                                                                         \displaystyle f'(x) = \frac{\frac{e^x}{2\sqrt{x}} - \sqrt{x}e^x}{(e^x)^2}
  4. Simplify:                                                                                                         \displaystyle f'(x) = \frac{\frac{e^x}{2\sqrt{x}} - \sqrt{x}e^x}{e^{2x}}
  5. Rewrite:                                                                                                         \displaystyle f'(x) = \bigg( \frac{e^x}{2\sqrt{x}} - \sqrt{x}e^x \bigg) e^{-2x}
  6. Factor:                                                                                                           \displaystyle f'(x) = \bigg( \frac{1}{2\sqrt{x}} - \sqrt{x} \bigg)e^\big{-x}

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differentiation

7 0
2 years ago
What is 6 to the fourth power times 6 to the fourth power
wel

Answer:

6^8

Step-by-step explanation:

6^4 * 6^4

We know that a^b * a^c = a^(b+c)

6^4 * 6^4 = 6^(4+4) = 6^8

7 0
3 years ago
Read 2 more answers
Other questions:
  • Write the standard form of the line that contains a slope of 2/3 and passes through the point (1,1). Include your work in your f
    15·1 answer
  • Tolong bantu yaa :) <br> tanpa menggunakan alat hitung, tentukan <br> a. 102 × 98<br> b. 1003 × 97
    6·1 answer
  • URGENT!!!!!!!!!!! PLEASE HELP!!!!!!!!!!!!!! WILL GIVE BRAINLIEST, AND RATING!!!!!!!!!!!!!
    5·1 answer
  • Two angles are complements if their sum is 90 degrees. The measure of one angle is one third the measure of its complement. Find
    9·1 answer
  • Why is it important to take personal responsibility for becoming<br> financially literate?
    15·1 answer
  • I have an idea on how to do this I just need to make sure it’s right or not but I’ll mark you!
    6·2 answers
  • A line is perpendicular to y = 3x - 8
    14·1 answer
  • If y varies directly as x and y = 42 when x = 6, find the equation that gives the relationship between x and y.
    7·1 answer
  • Chelsea needs 16 ounces of milk for a recipe. She only has a 1/4-measuring
    9·1 answer
  • Evaluate the following expressionsYour answer must be an exact angle in radians and in the interval Example: Enter pi/6 for lcei
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!