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
OverLord2011 [107]
3 years ago
10

Please help!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
NeTakaya3 years ago
6 0

Answer:

both of the answers are c

You might be interested in
The caller times at a customer service center has an exponential distribution with an average of 22 seconds. Find the probabilit
jenyasd209 [6]

Answer:

The probability that a randomly selected call time will be less than 30 seconds is 0.7443.

Step-by-step explanation:

We are given that the caller times at a customer service center has an exponential distribution with an average of 22 seconds.

Let X = caller times at a customer service center

The probability distribution (pdf) of the exponential distribution is given by;

f(x) = \lambda e^{-\lambda x} ; x > 0

Here, \lambda = exponential parameter

Now, the mean of the exponential distribution is given by;

Mean =  \frac{1}{\lambda}  

So,  22=\frac{1}{\lambda}  ⇒ \lambda=\frac{1}{22}

SO, X ~ Exp(\lambda=\frac{1}{22})  

To find the given probability we will use cumulative distribution function (cdf) of the exponential distribution, i.e;

    P(X\leq x) = 1 - e^{-\lambda x}  ; x > 0

Now, the probability that a randomly selected call time will be less than 30 seconds is given by = P(X < 30 seconds)

        P(X < 30)  =  1 - e^{-\frac{1}{22} \times 30}

                         =  1 - 0.2557

                         =  0.7443

7 0
3 years ago
Is 7/11 rational or irrational?
sattari [20]
The answers is Rational.  hope that helps


8 0
3 years ago
Read 2 more answers
Solve the system of equations below algebraically <br> 2x+3y=6 and -5x+2y=4
Charra [1.4K]


Steps
I’m using elimination so I’m trying to get rid of y
To do that I multiply the first equation by 2 and the second by -3. Then solve
4x + 6x = 12
15x + -6x = -12
—————————
19x + 0 = 0
Divid by 19 to get x to one side. 0/19 is 0 so
X= 0
Plug that into an equation so 0 + 3y = 6
Divid by 3 and y = 2
Answer x = 0 y = 2
7 0
3 years ago
What is the value of 7 in the number 21,780​
Georgia [21]
I need more information
3 0
2 years ago
I need help with this
WITCHER [35]

Answer:

8.1

Step-by-step explanation:

8.1 is the highest as you would look at the first number before the decimal and is the highest in this equation.

3 0
2 years ago
Read 2 more answers
Other questions:
  • What is the number of solid 3-inch by 2-inch by 2-inch rectangular prisms that can be
    7·1 answer
  • C(x) = (x^1/7)(x + 8)
    8·1 answer
  • NEED HELP ASAP PLEASE<br> Classify the quadrilateral.
    9·1 answer
  • **please give me the steps to solve this, will mark brainlyest if leads to correct answer**
    13·1 answer
  • A parallelogram has a base of 12 centimeters and a height of 8 centimeters. What is the area of the parallelogram?
    9·2 answers
  • Find the volume. Round to the nearest hundredth if necessary.
    12·1 answer
  • Line segment AB is reflected across the y–axis to form line segment CD. Then, line segment CD is rotated 90° clockwise about the
    11·1 answer
  • If the area of the square is<br> 36 mm? what is the<br> circumference of the circle?
    9·1 answer
  • DUE IN 10 MINS!!! I need help ASAP T^T
    12·2 answers
  • In ΔFGH, f = 880 inches, g = 450 inches and h=890 inches. Find the measure of ∠G to the nearest degree.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!