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ryzh [129]
2 years ago
9

Write an algebraic expression for each verbal description.

Mathematics
1 answer:
BaLLatris [955]2 years ago
7 0

Step-by-step explanation:

3r + (9 + 2r + 1)

this can be simplified :

3r + (9 + 2r + 1) = 3r + 2r + 9 + 1 = 5r + 10

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radius and number rotation

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5/6+1/4

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An art dealer is trying to determine whether the age of a painting plays a significant role in its price at auction. She collect
klasskru [66]

Answer:

-0.20

Step-by-step explanation:

Given the data:

Age at auction (x) ____price sold (y)

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51

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General formula for a simple linear regression :

y = ab + c

Where ;

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From the result obtained from the calculator :

y = -0.01246X + 74.65552

Correlation Coefficient is used to measure the strength of relationship between linear variables.

The regression Coefficient obtained is - 0.20

This shows that there is a weak negative correlation between the age at auction and the price at which painting is sold. This is because the negative sign means that value of y decreases as x increases or vice versa, however, due to a correlation vale which is closer to 0 than 1 or - 1, we can conclude that the negative relationship between the variables is weak.

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Read the following excerpt from a personal narrative essay. Based on the excerpt, what did the writer learn from her personal ex
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