Determine the surface area of a sphere, in terms of pi, Given a radius of 15 inches

Mathematics

1 answer:

anastassius [24]3 years ago

6 0

Answer:

900π

Step-by-step explanation:

surface area of a sphere: 4πr²

=> 4 × π × 15²

=> 900π

You might be interested in

A baker finds several new recipes to try. Of the new recipes, there are 11 for cookies, 10 for muffins, and 4 for cakes. If the

Mekhanik [1.2K]

Answer:

4/25

Step-by-step explanation:

All the amount of recipes is 11+10+4=25 . There are 4 recipes for cakes

so probability is 4/25

3 0

3 years ago

Is there a relation between the age difference between husband/wives and the percent of a country that is literate? Researcher

Xelga [282]

Answer:

$y = \beta_1 x + \beta_o$

With $\beta_1$ representing the slope we have that:

$\hat \beta_1 = -0.0437$

$\hat \beta_o = 7.5$

And we are interest on this case the interpretation about the slope and we can conclude that:

For every unit increase in literacy rate (percent of the population that is literate) the age difference (husband minus wife age) falls by 0.0437 units, on average.

Step-by-step explanation:

For this case we have that the regression model adjusted between age difference (husband minus wife age) representing the y variable and literacy rate (percent of the population that is literate) representing the variable x is given by:

$y= -0.0437 x + 7.5$ where $17 \leq x\leq 100$

And we know that the method used in order to adjust the regression line was least squares.

For this case our dependent variable is y = age difference (husband minus wife age) and the independent variable is x=literacy rate (percent of the population that is literate)

If we compare the regression model adjusted with the linear regression model:

$y = \beta_1 x + \beta_o$

With $\beta_1$ representing the slope we have that:

$\hat \beta_1 = -0.0437$

$\hat \beta_o = 7.5$

And we are interest on this case the interpretation about the slope and we can conclude that:

For every unit increase in literacy rate (percent of the population that is literate) the age difference (husband minus wife age) falls by 0.0437 units, on average.

3 0

3 years ago

The inverse of 14/x+3

Tasya [4]

Here ya go. Hopefully this explained everything.