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1 year ago

In the circle graph, what is the measure of the central angle for corn and green beans combined?

Mathematics

2 answers:

Irina18 [472]1 year ago

8 0

The 15% from the corn added to the 12% of the beans is 27%

find 27% of 360 by doing 360*.27
the answer is 97.2
round to 97

sweet [91]1 year ago

4 0

Answer:The combined central angle represented by green beans and corn=43.2+54=97.2°

Step-by-step explanation:

The measure of central graph is 360°and it represent 100%.

The percentage represented by corn and green beans are respectively 15% and 12 % respectively.

The central angle represented by green beans = $\frac{360}{100} .12=43.2$ °

The central angle represented by corn = $\frac{360}{100} .15=54$ °

The combined central angle represented by green beans and corn=43.2+54=97.2°

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1 year ago

Use the coordinates of the labeled point to find the point-slope equation of the line

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Answer:

A. y + 1 = -2(x-2)

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therefore our m value is -2

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1 year ago

Which graph represents the function f(x) = (x – 5)2 + 3?

goblinko [34]

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2 years ago

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A manufacturer of paper coffee cups would like to estimate the proportion of cups that are defective (tears, broken seems, etc.)

Maksim231197 [3]

Answer:

The 95% confidence interval is $0.0503 < p < 0.1297$

The sample proportion is $\r p = 0.09$

The critical value is $Z_{\frac{\alpha }{2} } = 1.96$

The standard error is $SE =0.020$

Step-by-step explanation:

From the question we are told that

The sample size is n = 200

The number of defective is k = 18

The null hypothesis is $H_o : p = 0.08$

The alternative hypothesis is $H_a : p > 0.08$

Generally the sample proportion is mathematically evaluated as

$\r p = \frac{18}{200}$

$\r p = 0.09$

Given that the confidence level is 95% then the level of significance is mathematically evaluated as

$\alpha = 100 - 95$

$\alpha = 5\%$

$\alpha = 0.05$

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

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the standard of error is mathematically represented as

$SE = \sqrt{\frac{\r p (1 - \r p)}{n} }$

substituting values

$SE = \sqrt{\frac{0.09 (1 - 0.09)}{200} }$

$SE =0.020$

The margin of error is

$E = Z_{\frac{ \alpha }{2} } * SE$

=> $E = 1.96 * 0.020$

=> $E = 0.0397$

The 95% confidence interval is mathematically represented as

$\r p - E < \mu < p < \r p + E$

=> $0.09 - 0.0397 < \mu < p < 0.09 + 0.0397$

=> $0.0503 < p < 0.1297$

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