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liubo4ka [24]
3 years ago
10

Please help me this is from khan academy :(((

Mathematics
1 answer:
Dmitrij [34]3 years ago
6 0

Answer:

y=1.4x+6.8

Step-by-step explanation:

(-2;4) (-7;-3)

4=-2k+b

-3=-7k+b

7=5k

k=1.4

-2.8+b=4

b=6.8

I already know k and b so I can write an equation.

y=1.4x+6.8

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Inferential statistics allow you to decide whether a difference between the experimental and the control group is due to:_______
den301095 [7]

Answer:

Option (A)

Step-by-step explanation:

There are 2 main branches of statistics. They are:

1. Descriptive Statistics

2. Inferential Statistics

Descriptive statistics describes the characteristics of observed subjects or items while Inferential statistics makes inferences, based on given or derived data.

Inferential Statistics allow you to decide whether a difference between the experimental group and control group is due to <u>manipulation or chance.</u>

<u />

The Experimental group is the group that an effect is tested on while the Control group is the group that is left untested or uninfluenced. Inferential statistics allow you to decide whether a difference between these 2 groups is due to

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5 0
4 years ago
A number is increased by 54. The sumos then divided by 9. The result is 21. Write an equation to represent the discription, use
hram777 [196]

Answer:

  (n+54)/9 = 21

Step-by-step explanation:

A number: n

Is increased by 54: n+54

The sum is divided by 9: (n +54)/9

and the result is 21:

  (n +54)/9 = 21

6 0
3 years ago
What is the minimum force required to prevent a ball weighing 22.6 lb from rolling down a ramp which is inclined at 39.0 with th
shusha [124]
22.6sin[39.0]= 21.78
3 0
3 years ago
What is the distance between the tick marks on the number line?
lora16 [44]

Answer:

1/5

Step-by-step explanation:

2 units divided into 5 marks each = 10 marks

2/10 = 1/5 unit each mark

4 0
2 years ago
Read 2 more answers
Plz help me. Plz calculate 4(x−2)−3
Alisiya [41]

Answer:

4x-11

Step-by-step explanation:

open parentheses: 4x-8-3

solve: 4x-11

7 0
3 years ago
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