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Vesnalui [34]
2 years ago
12

Please help this is due, not sure if I did this right. Triangle ABC is shown below with vertices A (7,4), B(1,1), and C(9,0). Fi

nd the area and perimeter of the triangle. ​

Mathematics
1 answer:
Paha777 [63]2 years ago
5 0

i think u did it right

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How many sets of 2/12 are in 9/12
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We can solve this problem by dividing 9/12 by 2/12. We should do this because to find how many sets of something are in a number, the question is asking us to do division. Doing this, we get 9/12 * 12/2, giving us our answer of 4.5 sets of 2/12 in 9/12. 
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Find the GCF of 14 and 84 using lists of factors.<br> The GCF is<br> IM SO BAD ST MATHEJJS
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14...I need them points so I’m answering
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A recent study of 26 city residents showed that the time they had lived at their present address has a mean of 10.3 years with t
svetlana [45]

Answer:

The 95% confidence interval is  9.15<  \mu < 11.45

Step-by-step explanation:

From the question we are told that

     The sample size is  n =  26

      The mean is  \= x =  10.3

       The standard deviation is  s =  3

From the question we are told the confidence level is  95% , hence the level of significance is    

      \alpha = (100 - 95 ) \%

=>   \alpha = 0.05

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  1.96

Generally the margin of error is mathematically represented as  

      E = Z_{\frac{\alpha }{2} } *  \frac{\sigma }{\sqrt{n} }

=>   E =  1.96 *  \frac{3}{\sqrt{26} }

=>   E = 1.1532

Generally 95% confidence interval is mathematically represented as  

      \= x -E <  \mu <  \=x  +E

=>   10.3  -1.1532 <  \mu < 10.3  +  1.1532

=>    9.15<  \mu < 11.45

7 0
3 years ago
Need help pronto!<br> First to answer gets Brainliest!!!
Nostrana [21]

Answer:

Not sure if I correctly did it but Stan is 56$ and Kyle is 44$, unless they meant how much they spent and were left with.

Step-by-step explanation:

50 + 6 = 56

34 + 10 = 44

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2 years ago
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Given a circle with a diameter of 4, what is the circumference?
Bezzdna [24]

Answer is B) 4 pi

Thank u

4 0
3 years ago
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