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Rama09 [41]
2 years ago
13

Find the mean of the following data set. 1,1,2,4,6,7,7,8,9,10,12,13,17,17,18

Mathematics
1 answer:
lisabon 2012 [21]2 years ago
6 0

Answer:

8.8

Step-by-step explanation:

Add all numbers together to get 132

All number of numbers together to get 15

Divide the sum of all numbers by the number of numbers:

132/15

8.8

pls mark brainliest!

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The answer to your question is a,c,d

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3 years ago
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Sheri's brother gave Sam his collection of stamps when she left for college. At that
pychu [463]

Answer: $70 per year.

Step-by-step explanation:

Let's say that x is the number of years that has passed and y is how much the stamp is worth.

So we know that in zero years the stamp was worth $420 because that is the time Sheri gave her brother Sam the stamp. That could bring up the coordinates  (0,420) .

Now we know that in 8 years it was worth $980 and that could be the coordinates (8,980)

To find the rate of change we need to find the different between the y value and divide it by the difference in the x values.

420 - 980 = -560

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The rate of change is 70 which means that it grew by $70 every year.

6 0
4 years ago
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professor190 [17]
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3 years ago
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Step-by-step explanation will be very helpful:<br> -4x ≥ 21
olchik [2.2K]

Answer:

x≤ -21/4

Step-by-step explanation:

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