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3 years ago

Three tanks have a total capacity of 266 gallons. If two tanks are the same size and the

Mathematics

1 answer:

mojhsa [17]3 years ago

7 0

Answer:

53.2 gallons

Step-by-step explanation:

let 't' = tank

t + t + t/2 = 266

5/2t = 266

multiply each side by 2/5 to get:

t = 106.4

the two larger tanks can each hold 106.4 gallons

the smaller tank can hold 53.2 gallons

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Answer:

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Step-by-step explanation:

Recall the negative angle identity for the sine function:

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A researcher collected data on the hours of TV watched per day from a sample of five people of different ages. Here are the resu

frozen [14]

Answer:

1. The least squares regression is y = -0.1015·x + 6.51

2. The independent variable is b) age

Please see attached table

Step-by-step explanation:

The least squares regression formula is given as follows;

$\dfrac{\sum_{i = 1}^{n}(x_{i} - \bar{x})\times \left (y_{i} - \bar{y} \right ) }{\sum_{i = 1}^{n}(x_{i} - \bar{x})^{2}}$

We have;

$\bar x$ = 24

$\bar y$ = 4

$\Sigma (x_i - \bar x) (y_i - \bar y)$ = -79

$\Sigma (x_i - \bar x)^2$ = 778

$\therefore \hat \beta =\dfrac{\sum_{i = 1}^{n}(x_{i} - \bar{x})\times \left (y_{i} - \bar{y} \right ) }{\sum_{i = 1}^{n}(x_{i} - \bar{x})^{2}} = \frac{-79}{778} = -0.1015$