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oksian1 [2.3K]
3 years ago
11

My sister needs help with this please someone help her

Mathematics
2 answers:
olga2289 [7]3 years ago
3 0

Answer:

1/5 ; 1.64

Step-by-step explanation:

Cara used 1.64 pints of blue paint or 1/5 of 8.2.

nignag [31]3 years ago
3 0

Answer:

1.64 pints or 41/25 or 1.64/8/2 i dont know which will take

Step-by-step explanation:

1/5 = x/8.2 1/5=0.20

.20=x/8.2

x=8.2x.20

x=1.64

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From the given mean and margin of error, the 99% confidence interval for the mean amount of money spent on lunch per week for all students is:

[$19.5, $22.5].

<h3>How to calculate a confidence interval given the sample mean and the margin of error?</h3>

The confidence interval is given by the sample mean plus/minus the margin of error, hence:

  • The lower bound is the sample mean subtracted by the margin of error.
  • The upper bound is the sample mean added to the margin of error.

For this problem, we have that:

  • The sample mean is of $21.
  • The margin of error is of $1.50.

Hence the bounds are given as follows:

  • Lower bound: 21 - 1.50 = $19.50.
  • Upper bound: 21 + 1.50 = $22.50.

Hence the interval is [$19.50, $22.50].

More can be learned about confidence intervals at brainly.com/question/25890103

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Step-by-step explanation:

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The volume of a cone is 251.2 cubic inches. The height of the cone is 15 inches. What is the radius of the cone, rounded to the
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6 0
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30 POINTSSS PLEASE HELPP!!!!
dsp73

Answer:

Short leg: 7cm

Long leg: 7√3

Step-by-step explanation:

This is a 30 60 90 triangle.

Picture shows how to solve.

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What is 26% of 48? Round to the nearest tenth.<br> (I need it asap)
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Answer:

<h2><u>12.48</u></h2>

Step-by-step explanation:

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