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Angelina_Jolie [31]
3 years ago
7

Triangles are both blank and blank

Mathematics
2 answers:
s2008m [1.1K]3 years ago
7 0

Answer: Blank triangles are a class of unidentified flying object (UFO) with certain common features which have reportedly been observed during the 20th and 21st centuries. Media reports of black triangles originally came from the United States and United Kingdom. Reports generally describe this class of UFOs as large, silent

grandymaker [24]3 years ago
4 0

Answer:

triangles are both scalene and isosceles

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A population has a standard deviation of 5.5. What is the standard error of the sampling distribution if the sample size is 81?
VladimirAG [237]

Answer:

\sigma = 5.5

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution \bar X and for this case we know that the distribution is given by:

\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})

And the standard error would be:

\sigma_{\bar x}= \frac{\sigma}{\sqrt{n}}

And replacing we got:

\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611

Step-by-step explanation:

For this case we know the population deviation given by:

\sigma = 5.5

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution \bar X and for this case we know that the distribution is given by:

\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})

And the standard error would be:

\sigma_{\bar x}= \frac{\sigma}{\sqrt{n}}

And replacing we got:

\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611

4 0
3 years ago
A giraffe is standing 22 feet from a naturalist hiding in the bush. The naturalist sights the animal and finds the angle of elev
kaheart [24]

Tan(angle) = opposite leg/ adjacent leg

Tan(30) = x/22

X = 22 * tan(30 )

X = 12.701 feet.

Round as needed

3 0
3 years ago
Write 0.283, 28.5%, and — in order from least to greatest.
Inessa [10]

Answer:

28.5\% \: = 0.285(dividing \: by \: 100) \\ so \: its \: already \: written \: in \: order \\ 0.283 \: to \: 0.285

Good luck!

Intelligent Muslim,

From Uzbekistan.

5 0
4 years ago
Whoever answers correctly gets 45 points
dimulka [17.4K]

m<1=23

m<2=90

m<3=67

m<4=113

m<5=67

the square means it is 90° so 2 is 90°.

all of the angles combined equals 360 so.

360-67-90= 203

since there is a straight line splitting down the middle. m<4=180-67=113

so m<4=113

now you would go 360-67-113-90=90 so

m<1 + m<3 =90

180-90-67=23.

m<1=23

360-67-23-90-113=67

m<3=67

5 0
3 years ago
Solve <br> 7x + 6 &lt; -22 need help asap!
VLD [36.1K]

Answer:

x<−4

Step-by-step explanation:

7x+6<-22

7x+6-6<-22-6

7x<-28

7x/7<-28/7

x<-4

Hope it helped!

4 0
3 years ago
Read 2 more answers
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