Answer:
3
/2
Step-by-step explanation:
As given, AC = BC, its an isosceles triangle.
Now, CD is perpendicular to AB, therefore AD = DB = 0.5AB = 3/2
Now take triangle ACD,
using Pythagoras theorem,
AC =
AC = 3
/2
:-)
Answer:
Explanatory variable : web page design
Response variables : Visitor's rating and amount of time visiting the site.
Kindly check explanation for the rest.
Step-by-step explanation:
The explanatory variable simply means the independent or predictor variable which is used to bring about a change in the dependent or predicted variable. The explanatory variable in the scenario above is the web page design which is used to measure the behavior and changes in the response variable which are the rating given by visitors and the number of visits on each of the two different web page designs available (explanatory variable).
The confounding factor which may affect the study is the different area assigned to test the effectiveness of each page ; designating one page for the Oakland area and the other for Miami. User preferences for each area may itself mask the actual outcome of the experiment.
Answer:
The mass of the block is 
Step-by-step explanation:
we know that
The density is equal to the mass divided by the volume
step 1
Find the volume of the granite block
we know that
The volume of a rectangular prism (granite block) is equal to

substitute the values

step 2
Find the mass of the block

we have


substitute the values and solve for the mass


Answer:

Step-by-step explanation:
Tyler simplified the expression:
as shown below:

We notice that in Tyler's work:

Whereas, the correct form would have been:

Making our solution:
