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IrinaK [193]
2 years ago
12

Question 7 of 18

Mathematics
1 answer:
Delicious77 [7]2 years ago
3 0

The more appropriate measures of center and spread are:

  • A. Better measure of spread: the interquartile range (IQR)
  • B. Better measure of center: the median

<h3>Which measures are best for the given data?</h3>

The better measure of the middle would be the median because mean is affected by low and high values which are present in the given data set.

As mean is not being used, standard deviation should not be used for the same reason. This leaves us with the interquartile range which is best because it does not take outliers into account.

Find out more on the Interquartile Range at brainly.com/question/12568713.

#SPJ1

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Factorise 4a^2+b^2-4ab-8a+4b+4​
Dima020 [189]

Answer:

The factorized form of the given expression is  4 [(a-1)^2 - b(a - 1 + \frac{b}{4})]

Step-by-step explanation:

Given;

4a² + b²  -  4ab  -  8a +  4b   + 4

This expression is factorized as follows;

(4a²  -  8a  + 4)  +  (b² -  4ab + 4b)

(4a² - 4a - 4a + 4)  + b² - 4b(a - 1)

(4a - 4)(a - 1) + b² - 4b(a - 1)

(4a - 4)(a - 1) -  4b(a - 1) + b²

4(a - 1)(a - 1)   -  4b(a - 1) + b²

4(a - 1)²  - 4b(a - 1 + b/4)

4(a- 1)^2 - 4b(a - 1 + \frac{b}{4} )\\\\4 [(a-1)^2 - b(a - 1 + \frac{b}{4})]

6 0
3 years ago
5c +2d=13<br> 2c + 4d = -6
Margarita [4]

Answer:

combine like terms and u'll have ur answer

Step-by-step explanation:

4 0
3 years ago
2.933 expanded form decimals
Shkiper50 [21]
Just put a period between everything 2.9.3.3
8 0
3 years ago
How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16%
stiks02 [169]
Approximately 1.143 L of peroxide should be added to the original solution. 
8 0
3 years ago
Read 2 more answers
I need a better explanation how to find length and area of a triangle
fomenos

Answer:

Height(h) = 24in

Area = 204in²

Step-by-step explanation:

we would use the heron formula because we have all the sides to calulate the area

S  = (A+B+C)/2 = (25 + 17 + 26)/2 = 68/2 = 34

area = √s(s-a)(s-b)(s-c)  = √34(34-25)(34-17)(34-26) = √34(9)(17)(8) = √34x9x17x8 = √41616 = 204

area= (1/2)bh

    204 = (1/2)bh b= 17, h =?

204 = (1/2)17h

204 x 2 = 17h

408 = 17h

h = 408/17 = 24in

Height(h) = 24in

Area = 204in²

4 0
3 years ago
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