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Leviafan [203]
3 years ago
7

The ratio of a rectangle's length to its width is 4:3. If the length of the rectangle is 48 inches, what is the perimeter of the

rectangle?
Mathematics
1 answer:
Andrei [34K]3 years ago
7 0

Answer:

36 inches

Step-by-step explanation:

The ratio is L:W = 4:3 = 48:?

if you divide 48 by 4 you get 12. So now do 12 times 3 to get 36! Whatever you do to one ration do the same to the other, I like to remember it that way.

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Answer:

The amount of money separating the lowest 80% of the amount invested from the highest 20% in a sampling distribution of 10 of the family's real estate holdings is $238,281.57.

Step-by-step explanation:

Let the random variable <em>X</em> represent the amount of money that the family has invested in different real estate properties.

The random variable <em>X</em> follows a Normal distribution with parameters <em>μ</em> = $225,000 and <em>σ</em> = $50,000.

It is provided that the family has invested in <em>n</em> = 10 different real estate properties.

Then the mean and standard deviation of amount of money that the family has invested in these 10 different real estate properties is:

\mu_{\bar x}=\mu=\$225,000\\\\\sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}=\frac{50000}{\sqrt{10}}=15811.39

Now the lowest 80% of the amount invested can be represented as follows:

P(\bar X

The value of <em>z</em> is 0.84.

*Use a <em>z</em>-table.

Compute the value of the mean amount invested as follows:

\bar x=\mu_{\bar x}+z\cdot \sigma_{\bar x}

   =225000+(0.84\times 15811.39)\\\\=225000+13281.5676\\\\=238281.5676\\\\\approx 238281.57

Thus, the amount of money separating the lowest 80% of the amount invested from the highest 20% in a sampling distribution of 10 of the family's real estate holdings is $238,281.57.

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What is the volume of this right rectangular prism. 7 feet length 2 feet width and 3.5 feet Height
Rashid [163]

i think the answer to this problem is49

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Liono4ka [1.6K]

The <em>correct answer</em> is:

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