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3 years ago

A rectangular garden is 24 feet wide. Its length is 4 feet more than twice the width. What is the area of the garden?

Mathematics

1 answer:

blagie [28]3 years ago

8 0

Answer:

1248

Step-by-step explanation:

w = 24feet

L=2w+4feet that means L= 2*24+4 =52

aera is 24*52=1248

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The student population at King Middle School is 52% female.

Phoenix [80]

Answer:There are a total of 1225 students at King Middle School. If the population is 52% female, then 1225 x .52 = 637 female. 1225 - 637 = 588 male students.

Step-by-step explanation:

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3 years ago

A restaurant chain wants to change their oil from peanut oil to canola oil in order to save money. However, the restaurant wants

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Step-by-step explanation:

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4 years ago

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3 years ago

A sample of 25 undergraduates reported the following dollar amounts of entertainment expenses last year:

marin [14]

Answer:

$Range = 85$

$\sigma = 28.71$

$Interval = [666.78, 781.62]$

Step-by-step explanation:

Given

The data for 25 undergraduates

Solving (a): Range and Standard deviation

The range is:

$Range = Highest - Least$

From the dataset:

$Highest = 772$

$Least = 687$

So:

$Range = Highest - Least$

$Range = 772-687$

$Range = 85$

The standard deviation is:

$\sigma = \sqrt{\frac{\sum(x - \bar x)^2}{n}}$

First, calculate the mean

$\bar x = \frac{769 +691 +............+715}{25}$

$\bar x = \frac{18105}{25}$

$\bar x = 724.2$

So, the standard deviation is:

$\sigma = \sqrt{\frac{(769-724.2)^2 +(691-724.2)^2 +(699-724.2)^2 +(730-724.2)^2 +............+(715-724.2)^2}{25}}$

$\sigma = \sqrt{\frac{20604}{25}}$

$\sigma = \sqrt{824.16}$

$\sigma = 28.71$

Solving (b): The interval of the 95% of the observation.

Using the emperical rule, we have:

$Interval = [\bar x - 2*\sigma, \bar x+ 2*\sigma]$

$Interval = [724.2 - 2*28.71, 724.2 + 2*28.71]$

$Interval = [666.78, 781.62]$

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3 years ago

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statuscvo [17]

Answer:

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Step-by-step explanation:

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3 years ago