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4 years ago

Why doesn’t it level me up??

Mathematics

2 answers:

agasfer [191]4 years ago

6 0

I don’t know lol jfkskaidjdjsjajaj

Pepsi [2]4 years ago

5 0

Answer:

maybe you don't have enough points or just give it some time

Step-by-step explanation:

brainliest pls

cause even i need it

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Consider a set of one-dimensional points: 6, 12, 18, 24, 30, 42, 48.

Vinvika [58]

Answer:

1) With initial centroids 10-40, final clusters are

first cluster (6,12,18,24,30)

second cluster (42,48)

And the Sum of Squared Errors (SSE) for the clustering result is 378

2) With initial centroids 10-20, final clusters are

first cluster (6,12,18,24)

second cluster (30,42,48)

And the Sum of Squared Errors (SSE) for the clustering result is 348

Step-by-step explanation:

K-means works as follows

the points will be clustered according to their distance to the centroids.
Then centroids are updated as the cluster means.
This process continues until clusters doesn't change anymore

1) initial centroids 10-40

first cluster (6,12,18,24) mean:15

second cluster (30,42,48) mean:40

new centroids 15-40

first cluster (6,12,18,24,30) mean:18

second cluster (42,48) mean:45

final centroids 18-45

first cluster (6,12,18,24,30) mean:18

second cluster (42,48) mean:45

Sum of Squared errors = $(18-6)^{2}$ + $(18-12)^{2}$ + $(18-18)^{2}$ + $(18-24)^{2}$ + $(18-30)^{2}$ + $(45-42)^{2}$ + $(45-48)^{2}$ =378

2)initial centroids 10-20

first cluster (6,12) mean:9

second cluster (18,24,30,42,48) mean:32.4

new centroids 9-32.4

first cluster (6,12,18) mean:12

second cluster (24,30,42,48) mean:36

new centroids 12-36

first cluster (6,12,18,24) mean:15

second cluster (30,42,48) mean:40

final centroids 15-40

first cluster (6,12,18,24) mean:15

second cluster (30,42,48) mean:40

Sum of Squared errors = $(15-6)^{2}$ + $(15-12)^{2}$ + $(15-18)^{2}$ + $(15-24)^{2}$ + $(40-30)^{2}$ + $(40-42)^{2}$ + $(40-48)^{2}$ =348

6 0

3 years ago

Solve the equation. –x + 8 + 3x = x – 6 x = –18 x = –14 x = 2 x = 4

mezya [45]

Answer:

$\huge \fbox \pink {A}\huge \fbox \green {n}\huge \fbox \blue {s}\huge \fbox \red {w}\huge \fbox \purple {e}\huge \fbox \orange {r}$

$- x + 8 + 3x = x - 6 \\ - x + 3x - x = - 6 - 8 \\ 2x - x = - 6 - 8 \\ x = - 14$

✏ The value of x = - 14 (option 2)

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

$\huge\red{ \mid{ \underline{ \overline{ \tt ꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐ }} \mid}}$

8 0

3 years ago

Read 2 more answers

Rice at the local market is being sold for $0.80 per pound. How much will a 3.5 pound bag of rice cost?

Anuta_ua [19.1K]

Answer: $2.80

Step-by-step explanation: .80×3 is 2.40 plus half of .80 is 2.80

4 0

3 years ago

A soccer game is 90 minutes long. 36 minutes have passed. What percentage of the game has passss?

Dafna1 [17]

Step-by-step explanation:

60 percentage hass passes

7 0

3 years ago

Read 2 more answers

Can you please help?

CaHeK987 [17]

1. 3x+8+4x+10=8x
2. 7x+18=8x
3. 18=x

maybe there is a glitch in the system... i have worked the equation more than 5 times... there is no other solution. i suggest u ask ur teacher for assistance, to make sure u are correct.
Good luck!

7 0

3 years ago