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
kykrilka [37]
3 years ago
15

What has 2 dimensional shape and the perimeter is also known as a circumference

Mathematics
1 answer:
Keith_Richards [23]3 years ago
4 0
A circle
*************************************************************


You might be interested in
Can someone answer this question please?
Effectus [21]

Answer:

5+9+-23

Step-by-step explanation:

7 0
3 years ago
Y/20=x <br> I need help on how to solve and the answer!
Deffense [45]

Answer:

12

Step-by-step explanation:

6 0
3 years ago
2 PUIHS
tatiyna

Answer:

45%

Step-by-step explanation:

3 0
3 years ago
More on fraction <br><br>21×5​
Tju [1.3M]

Answer:

105.

Step-by-step explanation:

21+21+21+21+21=105.

4 0
3 years ago
businessText message users receive or send an average of 62.7 text messages per day. How many text messages does a text message
KiRa [710]

Answer:

(a) The probability that a text message user receives or sends three messages per hour is 0.2180.

(b) The probability that a text message user receives or sends more than three messages per hour is 0.2667.

Step-by-step explanation:

Let <em>X</em> = number of text messages receive or send in an hour.

The random variable <em>X</em> follows a Poisson distribution with parameter <em>λ</em>.

It is provided that users receive or send 62.7 text messages in 24 hours.

Then the average number of text messages received or sent in an hour is: \lambda=\frac{62.7}{24}= 2.6125.

The probability of a random variable can be computed using the formula:

P(X=x)=\frac{e^{-\lambda}\lambda^{x}}{x!} ;\ x=0, 1, 2, 3, ...

(a)

Compute the probability that a text message user receives or sends three messages per hour as follows:

P(X=3)=\frac{e^{-2.6125}(2.6125)^{3}}{3!} =0.21798\approx0.2180

Thus, the probability that a text message user receives or sends three messages per hour is 0.2180.

(b)

Compute the probability that a text message user receives or sends more than three messages per hour as follows:

P (X > 3) = 1 - P (X ≤ 3)

              = 1 - P (X = 0) - P (X = 1) - P (X = 2) - P (X = 3)

             =1-\frac{e^{-2.6125}(2.6125)^{0}}{0!}-\frac{e^{-2.6125}(2.6125)^{1}}{1!}-\frac{e^{-2.6125}(2.6125)^{2}}{2!}-\frac{e^{-2.6125}(2.6125)^{3}}{3!}\\=1-0.0734-0.1916-0.2503-0.2180\\=0.2667

Thus, the probability that a text message user receives or sends more than three messages per hour is 0.2667.

6 0
3 years ago
Other questions:
  • How would you write 17/7 as a repeating decimal
    8·2 answers
  • You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. It bounces back up with every bounce,
    14·1 answer
  • Expand and simplify 5(2x-1) + 2(3x-6)
    6·1 answer
  • Mr Tom shared $300 between his two sons aged 15 years and 10 years in
    5·1 answer
  • G=qd+hd, solve for d
    7·2 answers
  • lisa gives child (x) and adult (y) haircuts in her salon. she charges $10 for a child and 40$ for an adult haircut. her goal is
    10·1 answer
  • The price of an item yesterday was $140. Today, the price fell to $63. Find the percentage increase.
    7·1 answer
  • A) suppose {u,v,w} spans the vectore space V.
    9·1 answer
  • What kinds of triangles can you use the pythagorean theorem on
    11·2 answers
  • Identify the growth factor for the following exponential function: y= 2.3(1.32)*
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!