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Jlenok [28]
3 years ago
9

Find the measure of angle A. Round your answer to the nearest hundredth.

Mathematics
2 answers:
Maksim231197 [3]3 years ago
6 0

Answer:

40.60 degrees to the nearest hundredth.

Step-by-step explanation:

Tan A = opposite side / adjacent side = 6/7'

The angle whose tangent is 6/7 is 40.60 degrees.


alina1380 [7]3 years ago
4 0

Answer:

Angle A = 40.6°

Step-by-step explanation:

For any right angle triangle we know the Pythagoras theorem reveals

Hypotenuse² = Height²+Base²

By this formula we will calculate the length of Hypotenuse

H² = 6²+7²

⇒ H =√36+49 = √85 = 9.22

Now from the given triangle sin A = Height/ Hypotenuse

                                               sin A = 6/9.22 = 0.651

Therefore A = sin^{-1}(.651) = 40.6

So angle A = 40.6°

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Step-by-step explanation:

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  The mean is  \= x  = 67.3 \  beats \  per \  minute

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Generally from the chi distribution table the critical value  of   at a degree of freedom of is  

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Generally the 99% confidence interval of the standard deviation of the pulse rates of men is mathematically represented as

  s \sqrt{\frac{n- 1}{X^2_{1- \frac{\alpha }{2} , n-1} } }\  \ , \ s \sqrt{\frac{n- 1}{X^2_{\frac{\alpha }{2} , n-1} } }

=>  10.3 \sqrt{\frac{40- 1}{65.476} }\  \ , \ 10.3 \sqrt{\frac{40- 1}{19.996} }

=>  [ 7.949 \  \ , \  14.387 ]

   

6 0
2 years ago
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