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Nonamiya [84]
3 years ago
9

)What is the distance between the points (12, 9) and (0, 4)

Mathematics
1 answer:
castortr0y [4]3 years ago
3 0

Answer:

the distance between the points is 13

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What is whats the circumference of a diamater of 443 sq inches on a circle
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If its diameter is 443 square inches, then its circumference is:

443 π square inches, as C=πd.
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Mrs. Lewis had $100 to purchase school supplies for her class. She bought 40 glue sticks and 40 boxes of crayons. Each glue stic
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the answer is she had $4.40 left.

Step-by-step explanation:

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Hey, can I get some help with this?
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A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie. Among the 500 ​respondents,
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Answer:

The statement that​ "the margin of error was given as \pm5 percentage​ points" means that the population proportion is estimated to be with a certain level of confidence, within the interval \hat{p} \pm 0.05 ; where \hat{p}[tex] is the sample's proportion. The correct answer is C. The statement indicates that the interval [tex]0.14\pm0.05 is likely to contain the true population percentage of people that prefer chocolate pie.

Step-by-step explanation:

The margin of error for proportions is given by the following formula:

z_{\alpha /2}\times\sqrt{\frac{\hat{p}\times(1-\hat{p})}{n}}

Where:

z_{\alpha /2} is the critical value that corresponds to the confidence level; the confidence level being 1-\alpha,

\hat{p} is the sample's proportion of successes,

n is the size of the sample.

In this exercise we have that \hat{p}=0.14 and that the margin of error is 0.05.

Therefore if we replace in the formula to calculate the confidence interval we get:

\hat{p}\pm 0.05=0.14\pm0.05=(0.09, 0.19)

Which means that the true population proportion is estimated to be, with a certain confidence level, within the interval (0.09, 0.19).

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3 years ago
Javier's fuel tank holds 12 3/4 gallons of gasoline when completely full. He had some gas in the tank and added 10.3 gallons of
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2.45 gallons of gasoline were in the tank before.

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Consider the provided information.

The tank can hold 12\frac{3}{4} gallons of gasoline when completely full. He had some gas in the tank and added 10.3 gallons of gasoline to fill it completely.

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