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GrogVix [38]
4 years ago
6

What is the answer to this question

Mathematics
1 answer:
faust18 [17]4 years ago
8 0

Answer:

r=10

Step-by-step explanation:

We can use the Pythagorean theorm to solve

a^2 +b^2 = c^2

24^2 + r^2 =(16+r)^2

FOIL the last term

(16+r) (16+r) = 256+16r+16r+r^2

576 +r^2 = 256+16r+16r+r^2

Combine like terms

576 +r^2 = 256+32r+r^2

Subtract r^2 from each side

576 +r^2 -r^2 = 256+32r+r^2-r^2

576 = 256+32r

Subtract 256 from each side

576-256 = 256-256+32 r

320 = 32r

Divide by 32

320/32 = 32r/32

10 =r

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The model does not fits the data well.      

Step-by-step explanation:

Correlation:

  • Correlation is a technique that help us to find or define a relationship between two variables.
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  • A positive correlation means that an increase in one quantity leads to an increase in another quantity
  • A negative correlation means with increase in one quantity the other quantity decreases.

R-square, R^2

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  • R-squared is also known as the  coefficient of determination.

R^2 = \text{(Correlation coefficient)}^2= (0.6)^2 = 0.36 = 36\%

Therefore, only 36% of the variations in the dependent variable is explained by the independent variable in the model which means more than 50% of variation cannot still be explained in the dependent variable.

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Step-by-step explanation:

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