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zheka24 [161]
3 years ago
10

The dot plot shows the number of chess games won by each of the 20 students in a competition.

Mathematics
2 answers:
Soloha48 [4]3 years ago
6 0

Answer:

Letter B is the correct answer. Median is 4 and IQR is 5.

Step-by-step explanation:

son4ous [18]3 years ago
5 0

Jason : 8,8,11,13,14,14,15,18,21,22,22,27,27,28,30

           median = 18

           IQR = 27 - 13 = 14

Ed : 7,12,12,15,19,21,21,21,21,22,23,23,26,27,27

       median = 21

       IQR = 23 - 15 = 8

Their medians cannot be compared based on their IQR's are 6 points apart

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2 2/3 plus 3 1/4 as a fraction
oksano4ka [1.4K]

Answer:

5\frac{11}{12} or \frac{71}{12}

Step-by-step explanation:

6 0
3 years ago
We will now use energy considerations to find the speed of a falling object at impact. Artiom is on the roof replacing some shin
ohaa [14]

Answer:

v = 8.49 m/s rounded off to 3 significant figures

Step-by-step explanation

Using Energy Conservation

U = Tk + Vp (Sum of kinetic Tk Energy and gravitational potential Vp Energy)

  1. At height = 3.67 m, the hammer was still or the velocity was negligible; hence, vi = 0 m/s.
  2. Ui = 0 + mgh
  3. At ground all potential energy is converted to kinetic; hence, Uf = \frac{1}{2}mv².
  4. Since total energy of the system remains constant we equate Ui to Uf.
  5. Ui = Uf
  6. mgh = \frac{1}{2}mv²
  7. After cancelling out masses and making v the subject of the formula we get:

v = \sqrt[2]{2gh} = \sqrt[2]{2*9.81*3.67} = 8.49 m/s rounded off to 3 significant figures

3 0
3 years ago
Branliest to correct answer explain how to solve it please
Marysya12 [62]

In general, nCr = n! / r! (n-r)!

Here, 7C3 = 7! / 3!(7-3)!

=7 x 6 x 5 x 4 x 3 x 2 x 1 /3 x 2 x 1 ( 4 x 3 x 2 x 1)

=7x6x5x4 / 4x3x2

=7x5x6x4 / 24

=35x24 / 24

=35

6 0
3 years ago
Rearrange the speed equation to solve for distance
pychu [463]
When you are solving problems for distance, speed and time, you will find it helpful to use diagrams and/or charts to organize the information and help you solve the problem. You will also apply the formula that solves distance, speed/rate and time which is distance = speed/rate times time:
<span>d = rt</span>
4 0
3 years ago
Alex worked 45.75 hours this week at $7.86 per hour. What is his gross pay?
alukav5142 [94]
45.75h(7.86d/h)=$359.595

Which is $359.60 to nearest cent.
7 0
3 years ago
Read 2 more answers
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