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3 years ago

PLEASE HELP!!!

Mathematics

2 answers:

nika2105 [10]3 years ago

4 0

Answer:

x = 40

Step-by-step explanation:

x + 100 + x = 180 {Straight line angles}

2x + 100 = 180 {subtract 100 from both sides}

2x = 180 - 100

2x = 80 {Divide both sides by 2)

x = 80/2

x = 40

Yuki888 [10]3 years ago

3 0

Answer:

x=40

Step-by-step explanation:

2x+100=180

2x=180-100

2x=80

x=40

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Step-by-step explanation:

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3 years ago

Read 2 more answers

A regression model involved 18 independent variables and 200 observations. The critical value of t for testing the significance

Evgen [1.6K]

Answer:

The correct answer to the following question will be Option d (181 degrees of freedom).

Step-by-step explanation:

The given values are:

Regression model,

n = 200

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p = 18

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⇒ $n-p-1$

On putting the estimated values, we get

⇒ $200-18-1$

⇒ $181$

So that the correct choice will be "181 degrees of freedom".

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3 years ago