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topjm [15]
2 years ago
7

Identify what type of polygon this is based on its number of sides. Is this a regular polygon why or why not?

Mathematics
1 answer:
Lady bird [3.3K]2 years ago
7 0
It is an irregular regular polygon, called a nonagon as the shape has unequal length sides and angles. lol
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How do I find the angle x if the supplement of the angle is 8 times the angle?
lisov135 [29]

Answer:

20°

Step-by-step explanation:

According to the question, pair of supplementary angles are x and 8x

since they are supplementary, their sum is equal to 180°

x+ 8x = 180°

9x= 180°

x= 180°/9

x= 20°

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3 years ago
Can someone help me. Please.<br> Algebra.
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A study was recently conducted to estimate the mean cholesterol for adult males over the age of 55 years. From a random sample o
Komok [63]

Answer:  Correct critical value = 2.2622

Step-by-step explanation:

Confidence interval for population mean when population standard deviation is unknown:

\overline{x}\pm t_{\alpha/2}\dfrac{s}{\sqrt{n}} , where \overline{x} = sample mean, n= sample size, s= sample standard deviation, t_{\alpha/2} = two-tailed t value.

As per given: n= 10

degree of freedom : df = n-1=9

\overline{x}=242.6\\\\s=73.33\\\\\alpha=5\%=0.05

Critical t-value : t_{\alpha/2,df}=t_{0.05/2,9}=t_{0.025,9}=2.2622

So, the 95 percent confidence interval estimate for the​ mean :

242.6\pm (2.2622)\dfrac{73.33}{\sqrt{10}}\\\\=242.6\pm (2.2622)(23.19)\\\\\approx242.6\pm52.46\\\\=(242.6-52.46,\ 242.6+52.46)\\\\=(190.14,\ 295.06)

The 95 percent confidence interval estimate for the​ mean:(190.14, 295.06)

8 0
3 years ago
1. The graph of y = x2 is translated 4 units down and 3 units to the left. It is also stretched by a factor
slega [8]

Answer:

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Step-by-step explanation:

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2 years ago
Read the picture that's were the question is.
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Answer:

X is your answer bc when coordinates are flipped over the x-axis the y coordinate goes negative

4 0
3 years ago
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