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slamgirl [31]
3 years ago
7

For Restaurant A, the owner wants to advertise a good cleanliness score to his customers. Which measure would make his score see

m as good as possible, the mean or the median? median mean
Mathematics
1 answer:
Semenov [28]3 years ago
8 0

Answer:

median

Step-by-step explanation:

the median would make the score as good as possible, because there could be possible outliers. this really depends on if there are outliers or not. here is an example of what i need:

say you are trying to show your parents your grades:

here are your scores:

38, 88, 90, 91, 93, 95, 100

the median would be 91, which looks better.

the mean would be 85.

even though a <em>majority</em> of your grades are good, the one 38 makes the average go down. therefore, the median is a better advertiser.

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The sum of three numbers in <br> g.p. is 21 and the sum of their squares is 189. find the numbers.
sashaice [31]
Let the three gp be a, ar and ar^2
a + ar + ar^2 = 21 => a(1 + r + r^2) = 21 . . . (1)
a^2 + a^2r^2 + a^2r^4 = 189 => a^2(1 + r^2 + r^4) = 189 . . . (2)
squaring (1) gives
a^2(1 + r + r^2)^2 = 441 . . . (3)
(3) ÷ (2) => (1 + r + r^2)^2 / (1 + r^2 + r^4) = 441/189 = 7/3
3(1 + r + r^2)^2 = 7(1 + r^2 + r^4)
3(r^4 + 2r^3 + 3r^2 + 2r + 1) = 7(1 + r^2 + r^4)
3r^4 + 6r^3 + 9r^2 + 6r + 3 = 7 + 7r^2 + 7r^4
4r^4 - 6r^3 - 2r^2 - 6r + 4 = 0
r = 1/2 or r = 2
From (1), a = 21/(1 + r + r^2)
When r = 2:
a = 21/(1 + 2 + 4) = 21/7 = 3
Therefore, the numbers are 3, 6 and 12.
3 0
2 years ago
Which statement must be true about the diagram?
guajiro [1.7K]

Answer:

Ray KM is an angle bisector of NKL.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
2 : 3 = .... : 9 ?<br> 5 : 10 = 20 : ...?<br> 1 : 3 = 8 : 24 ......?<br> 4 : 3 = 16 : 2 ....?
alekssr [168]

Step-by-step explanation:

first one is 6:9

second is 20:40

sorry I'm not sure about the others!

7 0
2 years ago
Read 2 more answers
How do i graph this function h(x)=-4(x-3)(x-1)
Umnica [9.8K]

Answer:

h(x)=-4x^{2} + 16x -12

Step-by-step explanation:

h(x)=-4(x-3)(x-1)    Copy the original equation

h(x)=-4(x^{2} -4x+3) Factor out the two parentheses

h(x)=-4x^{2} + 16x -12 Distribute the -4

If this answer is correct, please make me Brainliest!

3 0
2 years ago
Between July 28 and 30 of last year over 41.2 cm​ (about 16 ​inches) of rain fell in a city. The normal total monthly rainfall i
ZanzabumX [31]

The amount more of rain that fell in those three days than normally falls in July and August combined was 31.19 cm.

<h3>How much more rain fell in those three days?</h3>

The amount of rain in those three days was 41.2 cm.

The combined normal rain July and August is:

= 6.36 + 3.65

= 10.01 cm

The difference is therefore:

= 41.2 - 10.01

= 31.19 cm

Find out more on quantity of rainfall at brainly.com/question/13045834

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6 0
8 months ago
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