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omeli [17]
2 years ago
6

Help me with Thai math it’s worth 22 points PLZZ answer ALL of them

Mathematics
1 answer:
joja [24]2 years ago
5 0

Answer:

  1. supply (B)
  2. A step in process (A)
  3. (b)
  4. (A)

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According to (1.17), lei = 0 when regression model (1.1) is fitted to a set of n cases by the method of least squares. is it als
pychu [463]

solution:

\sum ei =0

that is  

\sum (yi-yiˆ)=0

means,

\sumyi = \sum yiˆ

yi = \alpha +\beta xi+ei

yiˆ=\alphaˆ+\betaˆxi

so,

\sumei=0

hence proved

4 0
3 years ago
Read 2 more answers
What is the Surface Area (SA) of a sphere that has a diameter of 4?
Elza [17]

Answer:

50.24

Step-by-step explanation:

radius R = 2

SA = 4πR^2 = 4π*2^2 = 16π = 16*3.14 = 50.24

8 0
2 years ago
I need help? can anyone help
erica [24]
I think it’s 5 but don’t get mad if it’s wrong
7 0
3 years ago
I really need help with this
aniked [119]

Answer:

5√202

Step-by-step explanation:

By Pythagoras theorem,

x^2 = 45^2 + 55^2

= 2025 + 3025

x^2 = 5050

x = 5√202

5 0
3 years ago
5=1/2x - 3 please help me out
liq [111]

Answer:

x = 16

Step-by-step explanation:

5 = 1/2(x) - 3

Add 3 to both sides.

8 = 1/2(x)

Rewrite for clarity.

1/2(x) = 8

x/2 = 8

Multiply both sides by 2.

x = 16.

Proof:

5 = 1/2(x) - 3

Substitute variable.

5 = 1/2(16) - 3

Multiply 1/2 and 16.

5 = 8 - 3

Subtract 3 from 8.

5 = 5

3 0
3 years ago
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