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Anni [7]
3 years ago
15

Find the median for the given data set4,8,9, 12. 31. 4, 16, 17, 11​

Mathematics
2 answers:
Rufina [12.5K]3 years ago
5 0

Answer:

11

Step-by-step explanation:

Arranging in order. 4,4,8,9,11,12,16,17,31

Number(N)=9

Using formula,

(N+1)/2

(9+1)/2

10/2

5

Now 5th number is 11 in the arranged data so answer is 11

yarga [219]3 years ago
3 0

Answer:

31

Step-by-step explanation:

Median - The "middle" of a sorted list of numbers. To find the Median, place the numbers in value order and find the middle number. Example: find the Median of {13, 23, 11, 16, 15, 10, 26}. Put them in order: {10, 11, 13, 15, 16, 23, 26} The middle number is 15, so the median is 15.

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. Factorise the following expression fully<br><br>(a+1)²-4b²​
Marat540 [252]

The factoring the equation (a + 1)² - 4b² we get (a+1+2b)(a+1-2b).

<h3>What is the factoring function of (a + 1)² - 4 b²?</h3>

Given:  (a + 1)² - 4b²

Apply Perfect Square Formula, and we get

(a + b)² = a² + 2 a b + b²

(a + 1)² = a² + 2a1+1²

= a² + 2a1 + 1² - 4 b²

simplifying the equation, we get

a² + 2a1 + 1² = a² + 2a + 1

= a² + 2a + 1 - 4b²

Factor, a² + 2a + 1 = (a + 1)²

= (a + 1)² - 4 b²

Simplify 4 b² = (2 b)²

= (a + 1)² - (2b)²

Apply the Difference of Two Squares Formula, and we get

x² - y² = (x + y)(x - y)

(a + 1)² - (2b)² = ((a + 1) + 2b)((a + 1) - 2 b)

simplifying the equation, we get

= ((a + 1) + 2b)(a + 1) - 2 b)

= (a + 1 + 2b)(a + 1 - 2b)

Therefore, the correct answer is (a+1+2b)(a+1-2b).

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7 0
2 years ago
The ratio 30 in. To 9ft in simplest form
dangina [55]
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Now find the ratio of (30 ft / 12) to 9 ft:

30 ft
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====   = -----------    Reduce this fraction; one way would be to
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  30            10
------- = ------------ = 5/18 (answer)
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8 0
4 years ago
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In order to accumulate enough money for a down payment on a​ house, a couple deposits $608 per month into an account paying 6% c
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Hi there
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8 0
3 years ago
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Answer:

Option b is correct.

Linear function ;

y =2x

Step-by-step explanation:

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Consider any points from the table;

(1, 2) and (2, 4)

substitute these point in [1] we get;

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for (2, 4) we have;

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4 = m + 2

Subtract 2 from both sides we get;

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8 0
3 years ago
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