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3 years ago

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There is a scale model of the White House in Tobu World Square in Japan. The scale used for the model is 1:25. The height of the

main building of the White House is 85 feet. Find this height on the model. (3.4 feet)

1 answer:

Cloud [144]3 years ago

3 0

Answer:

3.4 multiply 1-4

Step-by-step explanation:

there is a scale of white house

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An economist is interested in studying the spending habits of consumers in a particular region. The population standard deviatio

Lena [83]

Answer:

The width is $w = \$ 729.7$

Step-by-step explanation:

From the question we are told that

The population standard deviation is $\sigma = \% 1,000$

The sample size is $n = 50$

The sample mean is $\= x = \$ 15,000$

Given that the confidence level is 99% then the level of significance is mathematically represented as

$\alpha = 100 - 99$

=> $\alpha = 1\%$

=> $\alpha = 0.01$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table, the value is

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.01 }{2} } = 2.58$

Generally margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} * \frac{\sigma }{\sqrt{n} }$

substituting values

$E = 2.58 * \frac{1000 }{\sqrt{50} }$

$E = 2.58 * \frac{1000 }{\sqrt{50} }$

$E = 364.9$

The width of the 99% confidence interval is mathematically evaluated as

$w = 2 * E$

substituting values

$w = 2 * 364.9$

$w = \$ 729.7$

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3 years ago

A restaurant uses 8 1/4 pounds of carrots to make 6 carrots cakes . Frank wants to use the same recipe. How many pounds of carro

monitta

1 1/2 pounds

16 ounces = 1 pound

8 1/4 pounds = 132 ounces
132 ounces/ 6 cakes = 22
22 ounces = 1 1/2 pounds

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3 years ago

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Find the derivative by definition of the function 2x^3-x^2+4

nikklg [1K]

The answer is 6x^2-2x

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4 years ago

Emma bought 5 peices of candy from a candy disencer. Each peice of candy costs $0.75. How much money did she spend on candy?

Jlenok [28]

Answer:

$3.75

Step-by-step explanation:

5*0.75 = 3.75

Just multiply the two numbers together.

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3 years ago

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Suppose a regional computer center wants to evaluate the performance of its disk memory system.One measure of performance is the

Sonja [21]

Answer:

a) solved in attachment

b) If disk is running properly time between failure will exceed then Upper 90 % would be good indicator.

Step-by-step explanation:

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3 years ago