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3 years ago

State if a triangle is acute, obtuse, or right.

Mathematics

2 answers:

almond37 [142]3 years ago

6 0

The answer is A) Right because the lengths 3 cm and 3 cm are obviously the same so it will form a right angle

Radda [10]3 years ago

6 0

Answer:

Acute.

Step-by-step explanation:

This is a right angle:

|_ (Basically angle makes an "L" shape and equals to 90 degrees)

This is an obtuse angle:

\_ (Basically like a fat/big angle that is greater than 90 degrees)

This is an acute angle:

/_ (Basically "a-cute" angle that is small and is less than 90 degrees)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Hope that helps and maybe earns a brainliest! :)

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Helppp? I don’t understand trigonometry at all

Sladkaya [172]

Answer:

The diagram presented on Third expresses the graph of

$y = 3 \sin( \frac{1}{3}x )$

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1 year ago

Read 2 more answers

A researcher wants to estimate the percentage of all adults that have used the Internet to seek pre-purchase information in the

Lubov Fominskaja [6]

Answer:

The required sample size for the new study is 801.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

25% of all adults had used the Internet for such a purpose

This means that $\pi = 0.25$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

What is the required sample size for the new study?

This is n for which M = 0.03. So

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.03 = 1.96\sqrt{\frac{0.25*0.75)}{n}}$

$0.03\sqrt{n} = 1.96\sqrt{0.25*0.75}$

$\sqrt{n} = \frac{1.96\sqrt{0.25*0.75}}{0.03}$

$(\sqrt{n})^2 = (\frac{1.96\sqrt{0.25*0.75}}{0.03})^2$

$n = 800.3$

Rounding up:

The required sample size for the new study is 801.

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3 years ago

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Answer:

Step-by-step explanation:

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3 years ago

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2*(10) as your answer.

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3 years ago

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Svet_ta [14]

My answer would be B

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3 years ago