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mars1129 [50]
3 years ago
8

The ages of the student volunteers at an event are 13, 11, 12, 15, 16, 11, 12,

Mathematics
2 answers:
aliya0001 [1]3 years ago
6 0

Answer:The mean is 13

Step-by-step explanation:

Add all up and divide by 10 because there are 10 numbers

ipn [44]3 years ago
4 0

Answer:

13

Step-by-step explanation:

add all the numbers divide by how many numbers there are

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What is the repulsive force between two pith balls that are 13.0 cm apart and have equal charges of −24.0 nC?
daser333 [38]

Answer:

The repulsive force is 3.067\times10^{-4}N.

Step-by-step explanation:

Consider the provided information.

The coulomb's law to calculate the repulsive force: F=\frac{kQ_1Q_2}{r^2}

Where the value of k is 9.00×10⁹ Nm²/C²

Substitute the respective values in the above formula.

F=\frac{9\times10^9\frac{N\cdot m^2}{c^2} \times(-24\times10^{-9}C)^2}{[(13 cm)(\frac{1m}{100cm} )]^2}

F=\frac{9\times10^9\frac{N\cdot m^2}{c^2} \times(-24\times10^{-9}C)^2}{(0.13 m)^2}

F\approx0.0003067N

F=3.067\times10^{-4}N

Hence, the repulsive force is 3.067\times10^{-4}N.

8 0
3 years ago
Name the property demonstrate
Anika [276]
The answer is <span>Name the algebraic property demonstrated in the example below.
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8 0
3 years ago
HELP ASAP PLS GIVING BRAINLIEST
Dmitry_Shevchenko [17]

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4 0
3 years ago
What is the length of CD in this diagram, ABC - EDC,
natima [27]

Answer:

<h2>4</h2>

Option A is the right option.

solution,

∆ABC~∆EDC

\frac{bc}{cd}  =  \frac{ac}{ec}  \\  \:

putting the values,

\frac{20 - x}{x}  =  \frac{20}{5}  \\  or \: 5(20 - x) = 20x(cross \: multiplication) \\ or \: 100 - 5x = 20x \\ or \:  - 5x - 20x =  - 100 \\ or \:  \:  - 25x =  - 100 \\  \: or \: x =  \frac{ - 100}{ - 25}  \\ x = 4

Hope this helps..

Good luck on your assignment..

8 0
3 years ago
Read 2 more answers
Naomi can text 90 words in 12 minutes. At this rate, how many minutes would it take her to text 165 words?
AVprozaik [17]
To find the answer you have to see how many words see can type in a minute. To do that you can divide 90 into 12. You will get an answer of 7.5. Now that you know she can type 7.5 words per minute you can divide 165 in to 7.5. Will get an answer of 22. She will take 22 minutes to text 165 words.
5 0
3 years ago
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