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defon
3 years ago
14

What is the standard deviation of the data set given below? 4,7, 8, 9, 12

Mathematics
1 answer:
larisa [96]3 years ago
3 0

Answer:

I think 7

Step-by-step explanation:

4 , 8 , 9 and 12 has factors.

7 has no factor.

4= 2×2

8= 2×4

9= 3×3

12= 3×4

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Find the sum of all interior angles of a polygon with 9​
marin [14]

Answer:

1260

Step-by-step explanation:

polygon having sides is 9

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3 years ago
Solve the following quadratic equation by rearranging and then factorising x^2 + 3x - 15 = 2x - 13
NNADVOKAT [17]

Step-by-step explanation:

x² + 3x - 15 = 2x - 13

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Hence x = -2 or x = 1.

7 0
2 years ago
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I am completely lost.
Lesechka [4]
The surface area of a solid is just the total area of all its faces. We know a cube has 6 identical faces with area s^2 where s is the side length.

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6 0
3 years ago
House sold for $132000. Seller made 10% over original purchase price. What is the original purchase price of house
Sergio [31]
<span>V (sale value) = $ 132000
P (profit) = 10% on the sale, ie 10/100 * 132000 = 1320000/100 = $ 13200
C (cost) = ?

As:

V = C + P
132000 = C + 13200
C = 132000-13200
C = 118800

Answer:

He paid $ 118800 for the house (</span><span>Purchase price of house)</span>
6 0
3 years ago
Find the value of x in the triangle shown below.<br> please help me
vaieri [72.5K]

Answer:

Final Answer: 59

Step-by-step explanation:

180- 62= 118

118 / 2= 59

so both angles would be 59

8 0
3 years ago
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