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2 years ago

5

I need help with this please, i need it fast

1 answer:

shtirl [24]2 years ago

7 0

Answer:

angle equals 15.466 so Answer A, 15.47

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Write the the right answer and how you got to the answer. BEST ANSWER GETS BRAINLIEST

Gala2k [10]

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3 years ago

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3 years ago

39 is 5% of what number?

Inessa05 [86]

Answer:

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Step-by-step explanation:

Explanation:

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2 years ago

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

Lena [83]

Answer:

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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

$\alpha = 100 - 99$

=> $\alpha = 1\%$

=> $\alpha = 0.01$

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

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

substituting values

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

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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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2 years ago

The length of a rectangle is 5.4 cm more than 2 times the width. If the perimeter of the rectangle is 39.6 cm, what are its dime

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Answer:

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2 years ago