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Elena L [17]
3 years ago
11

What is twice 230? Write using exponents. Explain your reasoning.​

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
6 0
2 x 230 = 231
I’m not 100% sure if this is correct?? Hope it helps though
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An economist conducted a study of the possible association between weekly income and weekly grocery expenditures. The particular
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Answer:

42.1% of variation in the response is explained by the regression line

Step-by-step explanation:

Correlation coefficient is a measure which tells us that how strongly are two variables under study are linearly related to each other i.e correlation coefficient gives the strength of linear association between the variables.

If the magnitude of correlation coefficient is closer to 1, it indicates a strong linear relationship. If the magnitude of correlation coefficient is closer to 0, it indicates a weak linear relationship.

There is another variable known as "Coefficient of Determination", which is equal to square of Correlation Coefficient. Coefficient of Determination tells us that what percentage of variation in the response of the study can be explained by the regression line.

This means, for this question we need to calculate the Coefficient of Determination.

Correlation coefficient = r = 0.649

Coefficient of Determination = R = r² = (0.649)²= 0.421 = 42.1 %

This means that 42.1% of variation in the response is explained by the regression line.

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CDEF is kite and m A. 14 <br> B. 56 <br> C. 28 <br> D. 62
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Answer:

Step-by-step explanation:

56

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The school band played at a festival on tuesday the band started playing at 3:48 pm and stopped playing at 6:38 pm how long did
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Step-by-step explanation:

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Lexie worked for 5 hours and 30 minutes. How should she write it on her time card? A. 5.25 B. 5.3 C. 5.5 D. 5.75
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C. Wich mean she worked 5 hours and half an hour (0.5)
3 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B216%5C%5C%7D" id="TexFormula1" title="\sqrt[3]{216\\}" alt="\sqrt[3]{216\\}"
aivan3 [116]

Answer:

6

Step-by-step explanation:

\sqrt[3]{216} = \sqrt[3]{8} · \sqrt[3]{27}  =  \sqrt[3]{2}³ · \sqrt[3]{3}³ = 2 x 3  = 6

7 0
2 years ago
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