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2 years ago

Pls help me answer this

Mathematics

1 answer:

Dahasolnce [82]2 years ago

6 0

Answer:

give me my points

Step-by-step explanation:

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A recipe calls for one cup of juice concentrate for 4 cups of water. How many cups of concentrate are needed if 1 cup of water i

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Answer:

1/4 cups of juice

Step-by-step explanation:

1 cup of juice --- 4 cups of water

x cups of juice --- 1 cup of water

1/x = 4/1

1/x = 4

x = 1/4

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3 years ago

What is the temperature shown on the thermometer?

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2 years ago

Assume we need to estimate the mean of a normally-distributed population with great accuracy. Specifically, for significance lev

bulgar [2K]

Answer:

$n = 2662.56\sigma^2$

Step-by-step explanation:

We are given the following in the question:

Significance level = 0.01

Width of interval = 0.1

Population variance = $\sigma^2$

We have to find the sample size so that the width of the confidence interval is no larger than 0.1

$z_{critical}\text{ at}~\alpha_{0.01} = \pm 2.58$

Formula for sample size:

$n = \displaystyle\frac{z^2\sigma^2}{E^2}$

where E is the margin of error. Since the confidence interval width is 0.1,

$E = 0.05$

Putting these values in the equation:

$n = \displaystyle\frac{(2.58)^2\sigma^2}{(0.05)^2} = 2662.56\sigma^2$

So, the above expression helps us to calculate the sample size so that the width of the confidence interval is no larger than 0.1 for different sample variances.

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3 years ago

1) point R has coordinates of (1,0) point S is symmetric to point R with respect to the line y=-2, what are the coordinates of p

Simora [160]

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3 years ago

Please help me with math!!!!!

saveliy_v [14]

Answer:

We need for inforamtion like what is the volume for both of the shapes

Step-by-step explanation:

8 0

3 years ago

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Pls help me answer this