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Slav-nsk [51]
3 years ago
7

Find the area of an equilateral triangle (regular 3-gon) with the given measurement: 6-inch radius. A = sq. in.

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

Answer: The area or "the answer" will be 27√​3

Step-by-step explanation:

levacccp [35]3 years ago
4 0

The correct answer is 27√​3

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6 0
3 years ago
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Suppose a company makes skateboard wheels with a diameter of 64 mm. When the machine that manufactures the wheels is functioning
andreyandreev [35.5K]

Answer:

z=\frac{65-64}{\frac{3.5}{\sqrt{49}}}=2    

Now we can find the p value based in the alternative hypothesis and we got:

p_v =2*P(z>2)=0.0455  

Step-by-step explanation:

Information given

\bar X=65 represent the sample mean

\sigma=3.5 represent the population standard deviation

n=49 sample size  

\mu_o =64 represent the value to verify

z would represent the statistic  

p_v represent the p value

System of hypothesis

We want to verify if the true mean for this case is 64 or no, the system of hypothesis would be:  

Null hypothesis:\mu = 64  

Alternative hypothesis:\mu \neq 64  

The statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}  (1)  

The statistic for this case is given by:

z=\frac{65-64}{\frac{3.5}{\sqrt{49}}}=2    

Now we can find the p value based in the alternative hypothesis and we got:

p_v =2*P(z>2)=0.0455  

7 0
3 years ago
Read 2 more answers
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