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3 years ago

What three numbers come next 2.4, 3.2, 4.0, 4.8...

Mathematics

2 answers:

alexira [117]3 years ago

7 0

2.4 + 8=3.2 +8=4.0+8=4.8+8= 5.6 that's the answer

Komok [63]3 years ago

6 0

It's adding 0.8 each time

2.4 + 0.8 = 3.2
3.2 + 0.8 = 4.0
4.0 + 0.8 = 4.8

The next numbers would be 5.6, 6.4 and 7.2

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The dot plot shows the number of books lent by a school library during a 10-day period.

Katyanochek1 [597]

The mean absolute deviation of the number of books is 1.84

<h3>How to determine the mean absolute deviation?</h3>

The dot plot of the number of books is in the attached figure.

From the figure, we have:

x f

1 1

2 2

3 2

4 3

5 1

6 2

7 3

8 1

Start by calculating the mean using:

$\bar x= \frac{\sum fx}{\sum f}$

So, we have:

$\bar x= \frac{1 * 1 + 2 * 2 + 2 * 3 + 3 * 4 + 1 * 5 + 2 * 6 + 3 *7 + 1 * 8}{1 +2+2+3+1+2+3+1}$

Evaluate the sum and products

$\bar x= \frac{69}{15}$

Divide

$\bar x= 4.6$

The mean absolute deviation is then calculated as:

$|\bar x| = \frac{\sum f|x - \bar x|}{\sum f}$

So, we have:

$|\bar x|= \frac{1 * |1 -4.6|+ 2 * |2 -4.6| + 2 * |3 -4.6|+ 3 * |4 -4.6|+ 1 *| 5 -4.6|+ 2 * |6 -4.6|+ 3 *|7 -4.6|+ 1 * |8-4.6|}{1 +2+2+3+1+2+3+1}$

Evaluate the absolute difference

$|\bar x|= \frac{1 * 3.6+ 2 * 2.6 + 2 * 1.6+ 3 * 0.6+ 1 *0.4+ 2 * 1.4+ 3 *2.4+ 1 * 3.4}{15}$

Evaluate the sum of products

$|\bar x|= \frac{27.6}{15}$

Divide

$|\bar x|= 1.84$

Hence, the mean absolute deviation of the number of books is 1.84

Read more about mean absolute deviation at:

brainly.com/question/3250070

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6 0

2 years ago

What is 37737332732.83838-388733883.6 equal?

N76 [4]

Answer:

4838388.34?

Step-by-step explanation:

8 0

3 years ago

Twelve athletes are running a race. A gold medal is to be given to the winner, a silver medal is to be given to the second-place

kykrilka [37]

Answer:

1320

Step-by-step explanation:

We are given that

Total number of athelets are running in race=12

Total number of medals =3

We have to find the total possible number of ways can the 3 medals be distributed.

Total number of ways for choosen gold medal=12

Number of ways for choosen silver medal=11

Number of ways for choosen Bronze medal=10

Total number of possible ways= $12\times 11\times 10=1320$

Hence, total number of possible ways in which 3 medals be distributed=1320

8 0

3 years ago

2. Determine the slope of the line that passes through<br> the points (-1, -3) and (0, 6).

cupoosta [38]

Answer:

Step-by-step explanation:

use the formula m = y2- y1 / x2 - x1

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3 years ago

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How to solve this story problem

Vikentia [17]

Each crayon weighs 9 grams. First, if the box is 15 grams, you need subtract 105 with 15, which is 90. Then, divide 90 by 10(the amount of crayons), and you get 9, so each crayon weighs 9 grams

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3 years ago

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