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3 years ago

What is the angle measure of 68

Mathematics

1 answer:

guajiro [1.7K]3 years ago

4 0

Answer:

Step-by-step explanation:

I can't read that paper, so I'm assuming that you mean the angle measure of 68 degrees. Strange question.

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Find the measure of missing angle 20 130

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Answer:

30°

Step-by-step explanation:

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180-150= 30

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valkas [14]

Answer:

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Step-by-step explanation:

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Aleksandr-060686 [28]

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Anastasy [175]

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Step-by-step explanation:

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3 years ago

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G a survey of property owners' opinions about a street-widening project was taken to determine if owners' opinions were related

Naily [24]

Answer:

The expected frequency for people against the project and who have over 120 feet of property foot frontage is 3.9.

Step-by-step explanation:

The data provided is:

Opinion

Front Footage For Undecided Against Total

Under 45 feet 12 4 4 20

45-120 feet 35 5 30 70

Over 120 feet 3 2 5 10

Total 50 11 39 100

The formula to compute the expected frequency is:

$E(X)=\frac{\text{Row Total}\times \text{Column Total}}{\text{TOTAL}}$

Compute the expected frequency for people against the project and who have over 120 feet of property foot frontage as follows:

$E(X)=\frac{\text{Row Total}\times \text{Column Total}}{\text{TOTAL}}$

$E(5)=\frac{10\times 39}{100}=\frac{39}{10}=3.9$

Thus, the expected frequency for people against the project and who have over 120 feet of property foot frontage is 3.9.

6 0

3 years ago