Answer:
The angle being shown is an acute angle
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
It depend on the center of the dilation. For example, if the point (-6,4) is the center itself, than it will remain the same.
If the dilation has the origin as center, instead, the factor 1/2 simply means that you have to divide all coordinates by 2: the point (-6,4) becomes the point (-3,2)
Answer:

Step-by-step explanation:
The formula to find the error is:

Where:
is the standard deviation
n is the sample size
So
n = 80 people
= 12 movies
Then
= confidence level = 0.99


We look for the Z value: 
Looking in the normal standard tables
Therefore:

What's the sample space? Are we talking about rolling a die or what?
Anyway, if we call the probability
, then 
So, the expression becomes
