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
natta225 [31]
3 years ago
10

10 students are standing equidistant from the center of a classroom. they are all holding hands to begin with. they must go and

shake hands with all other students whose hands they are not holding. no handshake will occur more than once. how many handshakes will take place? ​
Mathematics
2 answers:
ozzi3 years ago
4 0

Answer:

35

Step-by-step explanation:

i dont know how to explain how i got the anwser

Alja [10]3 years ago
4 0

Answer:

45 handshakes will take place in total in the party

Step-by-step explanation:

Total number of students who attended the party = 10

Number of students needed to make one handshake = 2

Given that : no handshake will occur more than once.

⇒ No repetition of handshakes will be there.\

We need to find the total number of handshakes that took place in the party

\implies\text{Total number of handshakes = }_2^{10}\txterm{C}

\implies\text{Total number of handshakes = }\frac{10!}{2!\times 8!}

\implies\text{Total number of handshakes = }\frac{10\times 9}{2}

\implies\text{Total number of handshakes = }45

Therefore, 45 handshakes will take place in total in the party

You might be interested in
Find the surface area of th prism.
shutvik [7]
<span> 2(lh + lw + wh) = 96
lh + lw + wh = 48

l(h + w) + wh = 48
3(3 + 4) + 12

Length = 3
Width = 3
Height = 4
</span>
8 0
3 years ago
Read 2 more answers
What does 3 over 8 simplify to
nirvana33 [79]
To simplify, we need to find a number that can divide both the numerator and denominator equally. Can you find a number that will do this? I can't. So it is already simplified.
4 0
3 years ago
The batteries from a certain manufacturer have a mean lifetime of 850 hours, with a standard deviation of 70 hours, assuming tha
matrenka [14]

To answer (a), we will need to find the Z value for 710 hours and 990 hours.

\begin{gathered} For\text{ 710} \\ Z\text{ = }\frac{x-\mu}{\sigma} \\ \text{    = }\frac{710-850}{70} \\ \text{    = -2} \\ p\text{ =0.0228 } \\ For\text{ 990:} \\ Z\text{ = }\frac{990-850}{70} \\ \text{ =2} \\ p\text{ = 0.9772} \end{gathered}\begin{gathered} To\text{ find P \lparen–2 \le Z \le 2\rparen} \\ =\text{ 0.9772 -0.0228} \\ =\text{ 0.9544} \\ =95.44\% \end{gathered}

B) 68% of data lies between one standard deviation of the mean.

850 +70 = 920

850 - 70 = 780

5 0
1 year ago
If you going to answer one question say it in the comments it's gonna be the waste of time bc the answer is going to be deleted
oksano4ka [1.4K]
I am going to do number 2 so when you subtract decimals you have to add two zeros like this 10.00 or 0.25 so now when you subtract you get $9.75
6 0
3 years ago
A shipment of 23 television sets contain three defective ones. In how many ways can a vending machine purchase four of these uni
Alex_Xolod [135]
\frac{x}{y}  \frac{x}{y}  \frac{x}{y}  \frac{x}{y}  \frac{x}{y}  \neq  \sqrt{x}  \sqrt[n]{x}
4 0
3 years ago
Other questions:
  • *15 POINTS*
    15·2 answers
  • What number can replace N in the fraction n/4
    9·2 answers
  • Lisa has 6 orange dress Maggie has 8 blue dresses. By what percent is the number of Maggies dresses greater than the number of L
    12·2 answers
  • Try your best on math
    12·1 answer
  • What is the product in lowest terms?
    10·2 answers
  • What is the slope and y-intercept of the function shown in the table? <br> X: 1,4,7 <br> Y:6,12,18
    7·1 answer
  • Find the value of Tan 45°​
    11·1 answer
  • What is p in the equation -5 (p+ 3) = -4
    9·2 answers
  • What's the score? Jermaine has entered a bowling tournament. To prepare, he bowls five games each day and writes down the score
    9·2 answers
  • If you know this please help and explain this for me thanks
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!