Answer:
Step-by-step explanation:
When there is a ( + ) in front of an expression in parentheses, there is no need to change the sign of each term. That means, the expression remains the same. Just remove the parentheses
Collect like terms
Subtract 3 from 12
Collect like terms
Hope I helped!
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Sum of all interior angles on a polygon is
180( n - 2) n = number of sides in the polygon.
now, this one is is a 21-gon, thus the sum is 180( 21 - 2).
Answer: x= -0.3,2
Step-by-step explanation:
Combine your like terms then solve.
The width of the confidence interval is twice the margin of error. The lower bound of the confidence interval is the observed score minus the margin of error;
Answer:
The correct relation between Vocabulary terms and definitions is as follow:
a. treatment → a. experimental conditions imposed on the subjects
b. observational study → a study in which data is collected without anything being done to the subjects.
c. retrospective study → d. a study in which data from the past is examine
d. experimental units → c. The people, animals or things on whom experiments are performed
e. experiment → e. a study in which a treatment is applied and responses are observed
