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timofeeve [1]
2 years ago
15

Please help I have no idea what I’m doing

Mathematics
1 answer:
Ksivusya [100]2 years ago
8 0

Answer:

8 is the length, and 15 is the height.

8+7 =15

8*15 = 120

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I think it's 300

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Divide 12 by 4 first to figure out how many gallons are in each 1/4 of the tank. 

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If y=1/2 when x=2, find y when x=3, given that y varies directly with x
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\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad  y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
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\end{array}\\\\
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\textit{we also know that }
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\boxed{y=\cfrac{1}{4}x}
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3 years ago
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11Alexandr11 [23.1K]
Answers:


0.45 is a moderate association

0.95 and -0.8 are both strong association

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Explanation:


This is the interpreation of the correltaion coefficient:

1) The correlaion coefficient assesses the relationship between two variables in a scatter plot.


2) If the sign of the correlation coefficient is positive means that the two variables trend to grow or decrease in the same sense. This is an uphill line or curve:  if variable X grows, variable Y grows, and if variable X decreases variable Y grows.

If the sign of the correlation coefficient is negative means that the two variables go in opposite direction. This is a downhill line or curve.


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6) A correlation coefficient of 0 is a nill association.


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3 years ago
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