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sammy [17]
2 years ago
6

What shape has 3 equal sides 4 centimeters in length and no right angles

Mathematics
2 answers:
Karo-lina-s [1.5K]2 years ago
5 0
If it has 3 sides then it must be a triangle
If all sides are equal then it would be:
An equilateral triangle
lyudmila [28]2 years ago
4 0
The shape is a triangle.
 the area is 12 centimeters
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−29,605 rounded to the nearest hundred is?
Yuki888 [10]

6  is in the hundreds place.  Since the number to the right of it (0) is not greater than or equal to 5, then 6 is not rounded up.

Answer: -29,600

5 0
2 years ago
A phycologist is interested in determining the proportion of algae samples from a local rivulet that belong to a particular phyl
LuckyWell [14K]

Answer:

A sample of 16577 is required.

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 z-score that has a p-value of 1 - \frac{\alpha}{2}.

The margin of error is of:

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

99% confidence level

So \alpha = 0.01, z is the value of Z that has a p-value of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

She wants to estimate the proportion using a 99% confidence interval with a margin of error of at most 0.01. How large a sample size would be required?

We have no estimation for the proportion, and thus we use \pi = 0.5, which is when the largest sample size will be needed.

The sample size is n for which M = 0.01. So

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

0.01 = 2.575\sqrt{\frac{0.5*0.5}{n}}

0.01\sqrt{n} = 2.575*0.5

\sqrt{n} = \frac{2.575*0.5}{0.01}

(\sqrt{n})^2 = (\frac{2.575*0.5}{0.01})^2

n = 16576.6

Rounding up:

A sample of 16577 is required.

8 0
2 years ago
\displaystyle\lim_{ x \rightarrow 0 } \left( \dfrac{ \sqrt[ m ]{ 1+αx \phantom{\tiny{!}}} \times \sqrt[ n ]{ 1+βx \phantom{\tiny
kramer

Answer:

What are you trying to ask.

Step-by-step explanation:

Please Write in a understandable  manner.

Thanks from India.

8 0
2 years ago
Pythagorean theorem
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Answer:

x = 8

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rearrange the formula:

\sqrt{80} ^{2} - 8^{2} = b^{2}

80 - 64 = b^2

b^2 = 16\\b  = \sqrt{16}

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7 0
3 years ago
Which set of numbers may represent the sides of a triangle
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Answer:

C.(6, 4,2)

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