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Olegator [25]
3 years ago
15

Find the perimeter of the triangle below

Mathematics
2 answers:
Lorico [155]3 years ago
4 0
Answer: Perimeter 210

Exclamation: I’m pretty sure you just have to multiply all the sides together
Hope this helps :3
olasank [31]3 years ago
3 0
Incorrect actually, you add them together so it is 18
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Choose the circle with the greatest area​
katrin2010 [14]

Answer:

#3

Step-by-step explanation:

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3 years ago
What is the length of X?<br> a = 6.4<br> b = 12
Virty [35]
C = 12.2
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8 0
2 years ago
A veterinarian collects data on the number of times race horses are raced during their careers. The veterinarian finds that the
SpyIntel [72]

Answer:

c. (12.12, 18.48)

Step-by-step explanation:

Hello!

The study variable is X: number of times a racehorse is raced during its career.

The average number is X[bar]= 15.3 and the standard deviation is S= 6.8 obtained from a sample of n=20 horses.

To estimate the population mean you need that the variable has a normal distribution, in this case, we have no information about its distribution so I'll assume that it has a normal distribution. With n=20 the most accurate statistic to use for the estimation is a Students-t for one sample, the formula for the interval is:

X[bar] ± t_{n-1;1-\alpha /2} * \frac{S}{\sqrt{20} }

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[15.3 ± 2.093 * \frac{6.8}{\sqrt{20} }]

[12.12; 18.48]

Using a significance level of 95% you'd expect that the true average of times racehorses are raced during their career is included in the interval [12.12; 18.48].

I hope it helps!

8 0
3 years ago
The area of a square quilt is 196 square inches. There is a smaller square patch on the quilt with an area of 49 square inches.
Makovka662 [10]




To find your answer you would find the perimeter of the small square which is 28.

You would then find the perimeter of the big square which is 56. 

Next, you subtract 56 from 28 and get 28.  

So the difference is 28 inches.

Hope this helps!!



5 0
3 years ago
Read 2 more answers
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geniusboy [140]

Answer:

30

Step-by-step explanation:

450/15

4 0
3 years ago
Read 2 more answers
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