Answer:
Surface Area is 87.6cm squared
Step-by-step explanation:
Answer:
-6 negative six
Step-by-step explanation:
3- 2 - 1 - 4 + 2 - 4= -6
For this case we have that by definition, the volume of a sphere is given by:
Where:
r: It is the radius of the sphere
According to the data we have to:
Substituting we have:
The option that best fits is option B.
Answer:
The option that best fits is option B.
A variable that takes on the values of 0 or 1 and is used to incorporate the effect of categorical variables in a regression model is called the dummy variable.
We know that,
A dummy variable is a binary variable that takes a value of 0 or 1.
In regression analysis, a dummy variable is one that takes only the value 0 or 1 to indicate the absence or presence of some categorical effect that may be expected to shift the outcome.
The number of dummy variables we must create is equal to k - 1, where k is the number of different values that the categorical variable can take on.
It is an artificial variable created to represent an attribute with two or more distinct categories/levels.
These are being used in order to sort out data into mutually exclusive groups.
It is used typically in time series analysis, response modelling, bio-medical studies, economic forecasting and credit scoring.
Therefore, a variable that takes on the values of 0 or 1 and is used to incorporate the effect of categorical variables in a regression model is called the dummy variable.
Learn more about the dummy variable here:
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A1=-2
a2=6
a3=-18
the common ratio musbe negative since the signs alternate
it is multiilied by 3 ach time
comon ratio is -3
an=-2(-3)^(n-1)
