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3 years ago

Find the area of a regular Heptagon with a side length of 7?

Mathematics

1 answer:

Tanzania [10]3 years ago

6 0

Answer:

$seven \: sides \\ area = (7 \times 7) \\ = 49 \: sq \: units$

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HELP ASAP PLEASE!!!!!!!!!!!!!!!!!!

Marat540 [252]

Answer: The answer is 9

Step-by-step explanation:

3p + 6 = 5p − 12

3(9) + 6 = 5(9) − 12

27 + 6 = 45 − 12

33 = 33

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1 year ago

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PLEASE HELP !!!! (Number 10 )

givi [52]

Answer:

The answer is -7, or x = -7.

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3 years ago

insurance company checks police records on 559 accidents selected at random and notes that teenagers were at the wheel in 91 of

ss7ja [257]

Answer: $(13.22\%,\ 19.34\%)$

Step-by-step explanation:

Given : Sample space : n= 559

Sample proportion : $\hat{p}=\dfrac{91}{559}=0.162790697674\approx0.1628$

$=16.28\%$

Significance level : $\alpha= 1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Confidence level for population proportion:-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.1628\pm (1.96)\sqrt{\dfrac{0.1628(1-0.1628)}{559}}\\\\=0.1628\pm0.030604971367\\\\\approx 0.1628\pm0.0306=(0.1322,\ 0.1934)=(13.22\%,\ 19.34\%)$

Hence, 95% confidence interval for the percentage of all auto accidents that involve teenage drivers.= $(13.22\%,\ 19.34\%)$

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4 years ago

320,040 in expanded form and with names

kozerog [31]

300,000+20,000+40

Three twenty thousand, forty

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4 years ago

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Which set of ordered pairs represents a function?

kramer

A is the correct answer.

By definition, a function is a relation where each input has exactly one output. In letter A, the inputs 0, 1, 2, and 3 all have exactly one output.
In B, the input 1 has two outputs.
In C, the input 2 has two outputs.
In D, the input 2 also has two outputs.

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3 years ago

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