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Greeley [361]
3 years ago
11

FIND BE (NEED ANSWER FAST!!!)

Mathematics
1 answer:
Len [333]3 years ago
7 0

Answer:

9

Step-by-step explanation:

jayfeather friend me

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What is the volume of the sphere. Round your answer to the whole number
jarptica [38.1K]

Answer:

268 cm³

Step-by-step explanation:

6 0
3 years ago
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a photograph is 12in long by 20in wide. It is reduced so that the width is 15in what is the new length.
mylen [45]
The photo should now be 9in long. 
15/20 = l/12
15/20 *12
=9
Any more questions just ask!
3 0
3 years ago
The correlation coefficient between two quantitative variables is approximately 0.6. What does the value of this correlation coe
murzikaleks [220]

Answer:

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.
  • It is a measure of linear relationship between two quantities.
  • 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

  • The quantity R-squared is an indicator of the predictive power of a model.
  • It explains the variation in the dependent variable due to independent variable.
  • It shows how well the model fits the data.
  • 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.

Hence, the model does not fits the data well.

8 0
4 years ago
Math...............math
enot [183]

Answer:

Frrr its always math -_-

Step-by-step explanation:

6 0
3 years ago
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Choose all equivalent expression(s).
ElenaW [278]

<u>Given</u>:

The given expression is a b^{-3 x}

We need to determine the equivalent expression.

<u>Equivalent expression:</u>

Let us determine the equivalent expression.

The equivalent expression can be determined by simplifying the given expression.

Hence, let us apply the exponent rule to simplify the given expression.

Thus, applying the exponent rule, a^{-b}=\frac{1}{a^{b}}, we get;

a(\frac{1}{b^{3x}})

Rewriting the expression, we get;

a(\frac{1^{3x}}{b^{3x}})

Simplifying, we get;

a\left(\frac{1}{b}\right)^{3 x}

Thus, the equivalent expression is a\left(\frac{1}{b}\right)^{3 x}

Hence, Option C is the correct answer.

7 0
3 years ago
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