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DaniilM [7]
3 years ago
14

There are 20 people in a room. If every person shakes hands with every other person, how many handshakes will there be altogethe

r?
Number of handshakes=?
Mathematics
1 answer:
just olya [345]3 years ago
7 0

Answer:400


Step-by-step explanation: if everyone hand shakes every other person the answer will be 400, because 20 times 20 is 400

hope I helped.


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A 4   cm × 6   cm 4cm×6cmstart color #1fab54, 4, start text, c, m, end text, times, 6, start text, c, m, end text, end color #1f
Andreas93 [3]

Answer:

  1. Area of the rectangle: 24 cm²
  2. Area of the circle: 380.13 cm²
  3. Area of between the circle and the rectangle: 356.13 cm²

Explanation:

The question describes<em> a rectangle of dimensions  4 cm × 6 cm inscribed in a circle with radius 11 cm</em>.

You can find:

  • The area of the rectangle
  • The area of the circle
  • The area between the rectangle and the circle.

<u>1. Area of the rectangle:</u>

Area=length\times width=4cm\times 6cm=24cm^2

<u>2. Area of the circle:</u>

Area=\pi\times radius^2=\pi \times (11cm)^2\approx 380.13cm^2

<u>3. Area between the rectangle of the circle:</u>

This is the area of the circle that does not belong to (or is outside of) the area of the rectangle.

Area=\text{area of the circle - area of the rectangle}\\ \\ Area=380.13cm^2-24cm^2=356.13cm^2

8 0
3 years ago
Read 2 more answers
After graduating from college, Jane has two job offers to consider. Job A is compensated at $100,000 a year but
vaieri [72.5K]

Answer: (a)  Job A , by approximately $69, 482

\\ (b)  Job A , by approximately $6,867

 \\(c) Job B , by approximately $ 767,362

  \\ (d) Job A

Step-by-step explanation:

JOB B

\\The starting Salary is $ 10,000

Since there is an increment of 25% at the beginning of each new year. The breakdown of the increment is as follow:

\\First year : 125% of $ 10,000 = $12,500

\\Second year : 125% of $ 12,500 = $15,625

\\Third year : 125% of $15,625= $19,531.25

\\Fourth year: 125% of $19,531.25 = $24,414.06

\\Fifth year : 125% of $24,414.06 = $30,517.58

\\Sixth year: 125% of $30,517.58 = $38,147.00

\\Seventh year: 125% of $38,147.00 = $47,683.75

\\Eight year: 125% of $47,683.75 = $59,604.69

\\Ninth year: 125% of $59,604.69 = $74,505.86

\\Tenth year: 125% of $74,505.86 = $93,132.32

\\Following the same procedure:

\\Eleventh year = $116,415.40

\\Twelfth year = $145,519.25

\\Thirteenth year = $181,899.06

\\Fourteenth year = $227,373.82

\\Fifteenth year = $ 284,217.29

\\Sixteenth year = $355,271.61

\\Seventeenth year = $444,089.51

\\Eighteenth year = $555,111.89

\\Nineteenth year = $693,889.86

\\Twentieth year = $867,362.32

\\(a) Following the analysis above, at the beginning of the fifth year Job A will have a greater annual salary

\\Difference: Salary of Job A at the beginning of fifth year remains $ 100,000 while that of Job B resulted into $ 30,517.58, the difference implies

$100,000 - $ 30,517.58 = $69,482

\\(b) At the beginning of tenth year, Job A is still $100,000, Job B resulted into $93,132.32. Job A is still greater by approximately $6,867

\\(c) At the beginning of the twentieth year, the annual salary of A is still $ 100,000 while the annual salary of B is $ 867,362.32. Job B annual salary is greater by approximately $ 767,362

\\(d) If I were in Jane’s shoe I will take Job A and work for few years to gain more experience the look for a job that pays better. Waiting for many years in case of Job B is risky , market situation is uncertainty.

8 0
3 years ago
Need an answer to 2/3 - 4
garri49 [273]
-3.3333 is the answer
7 0
2 years ago
Unit Test
wolverine [178]

Answer: c the third option

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How do I find the area of each shape
Ad libitum [116K]

Answer: the formula is (A=bh1/2)


Step-by-step explanation: #4 (The triangle)

First let’s find the base length of the triangle.

28 - 16 = 12

Ok now let’s do the real math now

Area  = bh1/2

Area = (12)(16)(1/2)

Area = 96

Don’t worry about the slant height it’s just there to trick you  




8 0
3 years ago
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