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frozen [14]
3 years ago
13

What is the square root of 1 2/5 ?

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
5 0

Answer:

Square root of 1 is 1

Square root of 2 is 1.41421356237 so 1.41

square root of 3 is 1.73205080757 so 1.73

Step-by-step explanation:

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suppose a consumer advocacy group would like to conduct a survey to find the proportion p of consumers who bought the newest gen
Zepler [3.9K]

The size of the sample they should take to estimate p with a 2% margin of error and 90% confidence is n = 1691.

In statistics, the margin of error is just the degree of a significant error in the outcomes of random sample surveys.

The formula of margin error is, E = z√((p-vector)(1 - (p-vector)) ÷ n)

E = 2% = 0.02

Confidence level = 90%

Now, the proportion is not given so adopt nominal (p-vector) = 0.05

The critical value at CL of 90% is 1.645.

Thus, making n the subject,

n = z²(((p-vector) × (1 - (p-vector))) ÷ E²)

n = 1.645²((0.5 × 0.5) ÷ 0.02²)

n = 1691.266

n ≈ 1691

Read more about the margin of error at

brainly.com/question/16141482?referrer=searchResults

#SPJ4

4 0
1 year ago
11. What is the value of x in the figure at the right? (Examples 3 and 4)
natka813 [3]

Answer:

x = 11

Step-by-step explanation:

  • Vertically opposite angles are equal
  • Angles around a point add up to 360°

Therefore, 15x + 15x + 15 + 15 = 360

\implies 30x+30=360

\implies 30x=330

\implies x=11

6 0
3 years ago
1. A system of linear equations that has one solution has slopes that are__________
algol13

Answer:

different

Step-by-step explanation:

different slopes gives one solution

same slopes with different constant has no solution

same slopes and constants has many solutions

3 0
3 years ago
Helppppppppppppppppppppppppp
lawyer [7]

Answer:

200

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Y - 4 × x - 6 is? ​
Vlad [161]

Answer:

y-4x-6

Step-by-step explanation:

I'm not 100% sure but I think this is correct!

6 0
3 years ago
Read 2 more answers
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