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
Murljashka [212]
3 years ago
15

The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.

If X has an average value of 21 minutes, what is the probability that X is less than 28 minutes? (Do not round until the final step. Round your answer to 3 decimal places.)
Mathematics
1 answer:
kobusy [5.1K]3 years ago
3 0
Sorry I don’t know I’m bad at math lol
You might be interested in
A. A cylinder just fits into a cube of side length 36 m Calculate the percentage
Nataliya [291]

Answer:

21.5%

Step-by-step explanation:

volume of cube: 36x36x36

volume of cylinder: πx18²x36

Cylinder percentage: (πx18²x36) / 36x36x36 = π / 4 = 0.785

percentage  of empty space: 1 - 0.785 = 0.215  (21.5%)

4 0
3 years ago
Mrs. Sanders bought 2 pumpkins. The first one weighed 4.9 kilograms. Use >, <, or = to compare the weights. Justify your a
Rama09 [41]
How much did the second pumpkin weigh.
8 0
3 years ago
In gym class, Ted runs 4/5 mile. His teacher runs 6 times that distance each day. How many miles does Ted's teacher run each day
Novay_Z [31]
4/5 x 6 
4/5 = .8
.8 x 6 = 4.8 miles

Hope this helps!!!
8 0
4 years ago
Read 2 more answers
Convert 3 16/8 to either a whole number or a mixed number.
Alecsey [184]
3 16/8

16/8 simplifies to 2 
So add 3+2=5
6 0
3 years ago
Can you help with these problems please
Dahasolnce [82]

Answer:

\boxed{y = m(x -  x_{1}) + y_{1}}

Step-by-step explanation:

if \: m =  \frac{y-  y_{1}}{x -  x_{1}}  \: the \:  \boxed{y} \: sgivn \: by \to \\ y -  y_{1} = m(x -  x_{1}) \\  \boxed{y = m(x -  x_{1}) + y_{1}}

♨Rage♨

5 0
3 years ago
Other questions:
  • F 100 tires are randomly selected for shipment to an outlet what is the probability that they are all​ good?
    10·1 answer
  • The table below shows the fifth roots of different numbers:
    14·1 answer
  • At the library you find nine books on a certain topic the librarian tells you that 55% of the books on this topic have been sign
    15·1 answer
  • a 24 foot tall streetlight casts a shadow that is 18 feet long. how long of a shadow is cast by a nearby parking meter post that
    14·1 answer
  • Whichwhich would you measure using inches? A. length of a pen B. height of a flagpole C. length of a cross-country race course D
    7·1 answer
  • You have a box of chocolates (30 chocolates in the box). 15 are filled with caramel, 10 are filled with chocolate, and 5 are fil
    9·1 answer
  • PLEASE HELP ITS EASY MATH
    8·1 answer
  • Which expression is equivalent to 60 Σ n=1 (2n − 1)2 ? Check all that apply.
    13·2 answers
  • WILL GIVE BRAINLIEST!!! A rectangular field has an area of 4200 feet. Let the length of the field be (x+2) and the width be (x-3
    5·2 answers
  • What is the inverse function of f(x)=x^3+8
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!