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kenny6666 [7]
3 years ago
13

What is the answer to this question? I do not know

Mathematics
2 answers:
TiliK225 [7]3 years ago
7 0
The formula for circumference is: (3.14)(r^2)
Radius is 13
13 x 13= 169
169 x 3.14= 530.66
Bike travels 530.66 inches per rotation of the wheel.
kap26 [50]3 years ago
4 0
81.60 because you multiply the diameter by pi

26*pi = 81.68
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Ms. Monroe mixes 200 cubes of 4 different colors for a project. She then uses a scoop to place 20 cubes into each of 10 paper ba
Scilla [17]

Answer:

The mean no. of red cubes is more than the median no. of red cubes.

Step-by-step explanation:

According to the question, we can prepare the following table denoting the no. of bags containing any number of red cube(s). The no. of red cubes in each bag can theoretically be any no. between 0 and 20 (both end inclusive) as in total each bag contains 20 cubes of different colors.There are as a whole 10 bags (given).

No. of red cubes           No. of bags           (x_{i}f_{i})

 (x_{i})                                        (f_{i})

    0                                     2                             0

     1                                     0                             0

     2                                    2                             4

     3                                     1                             3

     4                                     1                             4

     5                                     0                            0

     6                                     1                              6

     7                                      2                           14

      8                                     1                             8

      9                                     0                            0

    10                                      0                            0

 Total                                 10                            39

Now, no. of bags containing no. of red cubes  above 10   is  0   [since there are as a whole 10 bags only]

       

So, from  the table we  get that  mean no, of red cubes in each bag

  = \frac {\sum_{i =1}^{10}x_{i}f_{i}}{\sum_{i=1}^{10}f_{i}}

  =  39/10 = 3.9

Also, from the table, we get that, no. of bags with no. of red cubes ≤ 3

= (2 + 2 + 1) = 5

and, no. of bags with no. of red cubes  ≥ 4

= (1 + 1 + 2 + 1) = 5

Also there are 1 bag each for no. of red cubes = 3 and 4

So. median no. of red cubes = (3 + 4)/2 = 3.5

So, we get that the mean no. of red cubes is more than the median no. of red cubes.

5 0
3 years ago
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How many solutions are there to the quadratic formula 10x + y = -x2 + 2
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Using quadratic formula you can have a maximum of two solutions. When you set this problem equal to zero, your a=-1, b=-10, c=2
4 0
3 years ago
What is the sum of the exterior angles of a decagon
IgorC [24]

Answer:

10 exterior angles of 36° , 10 interior angles of 144° , and 10 vertices

Step-by-step explanation:

4 0
2 years ago
Ashley started the year with 45 comic books. Each month , she adds 5 more comic books to her collection. Which table correctly r
dybincka [34]
Ashley starts with 45 comics. 

So in the first box: 
x  = 0, y = 45
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Each month, she adds 5 comic books to her collection

x (+1), y (+5) (for each month).

First month. 

x = 0
y = 45

Second month

x = 1
y = 45 (+5) = 50

Third month

x = 2
y = 50 (+5) = 55

etc.

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B) is your best choice, as for every month add (+1), the comic books increase by 5 respectively.

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hope this helps

7 0
3 years ago
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The length of a rectangle is 4 more than twice the width. If the perimeter of the rectangle is 104 centimeters, what are the len
qaws [65]

Answer:

Make Width = 'x'

Length = 4 + 2x

Perimeter = 2 x Width + 2 x Length

86 = 2(x) + 2(4 + 2x)

86 = 2x + 8 + 4x

Collect like terms:

2x + 4x = 86 - 8

6x = 78

x = 13

Width = 13 cm

Length = 30 cm

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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