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3 years ago

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A right triangle has an area of 21 m2 . The dimensions of the triangle are increased by a scale factor of 4. What is the area of

the new triangle

1 answer:

vladimir2022 [97]3 years ago

4 0

Answer: The Answer is D, 336 Meters squared.

Step-by-step explanation:

When you increase the dimensions of a right triangle by a scale factor of 4, you increase the area by a factor of 4 squared or 16.

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There were 324 adults surveyed. Among the participants, the mean number of hours of sleep each night was 7. 5 and the standard d

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The margin of error for 324 adults surveyed with 1.6 standard deviations is 0.1742.

<h3>What is the margin of error?</h3>

The margin of error can be defined as the amount of random sampling error in the results of a survey. It is given by the formula,

$\text{MOE}_{\gamma}=z_{\gamma} \times \sqrt{\frac{\sigma^{2}}{n}}$

$\text{MOE}$ = margin of error

$\gamma$ = confidence level

$z_{\gamma}$ = quantile

σ = standard deviation

n = sample size

As it is given that the sample size of the survey is 324, while the standard deviation of the survey is 1.6.

We know that the value of the z for 95% confidence interval is 1.96. Therefore, using the formula of the standard of error we can write it as,

$\text{MOE}_{\gamma}=z_{\gamma} \times \sqrt{\dfrac{\sigma^{2}}{n}}\\\\\text{MOE}_{\gamma}=1.96 \times \sqrt{\dfrac{1.6^{2}}{324}}\\\\\text{MOE}_{\gamma}=0.1742$

Hence, the margin of error for 324 adults surveyed with 1.6 standard deviations is 0.1742.

Learn more about Margin of Error:

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Can you guys help me. I will mark you as a brainliest. And give you a really good rating.

Nikitich [7]

Add 5ft 7in and 4ft 8in together

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Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.

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Answer:

the first graph is 3:2

the second is 3:1 or 2:1 i'm not 100% sure on that one

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Step-by-step explanation: I took the test and got it right

I hope this helps:)

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Juanita is measuring a table for her dining room. Table area is 46 7/8 square feet. Table length is 7 1/2 feet. She does not wan

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A box contains plain pencils and pens. A second box contains color pencils and crayons. One item from each box is chosen at rand

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1/2

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