3 years ago

Y=x^(3/2) in terms of y

Mathematics

1 answer:

Rufina [12.5K]3 years ago

3 0

Take the inverse of the power to both sides.

x = y^2/3

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A toy manufacturer wants to know how many new toys children buy each year. A sample of 601 children was taken to study their pur

Lilit [14]

Answer:

The confidence interval is 6.6<μ<6.8.

Step-by-step explanation:

We have:

Number of observations = 601

Mean = 6.7

Standard deviation σ = 1.5

The z-score for a 95% confidence interval is 1.96.

The limits of the confidence interval can be calculated as

$X \pm z*\frac{\sigma}{\sqrt{n}}\\\\LL=X-z*\frac{\sigma}{\sqrt{n}}=6.7-1.96*\frac{1.5}{\sqrt{601} } =6.7-0.1199=6.6\\\\UL=X+z*\frac{\sigma}{\sqrt{n}}=6.7+1.96*\frac{1.5}{\sqrt{601} } =6.7+0.1199=6.8$

The confidence interval is 6.6<μ<6.8.

7 0

3 years ago

Use a calculator to find the standard deviation of this data set:

Rashid [163]

Answer:

3.5

Hope this helps!

4 0

3 years ago

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What one half multiplied by 4/5

MrRa [10]

Answer:

2/5

Step-by-step explanation:

1. 1/2 * 4/5

2. 4/10

3. reduce/divide the fraction by 2

4. you get 2/5

7 0

3 years ago

How many times do you have to regroup to subtract 847 -268

navik [9.2K]

Answer:

= 3 R 43

= 3 43/268

847 divided by 268 equals

3 with a remainder of 43

5 0

2 years ago

What is (9-3)^2-(5x4)^0

Ainat [17]

Step-by-step explanation:

6^2 is 36, any thing to the power of 0 is 1

therefore 36 - 1 is 35

35 is your answer

4 0

3 years ago

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