Answer:
Step-by-step explanation:
The angle formed by 
and the angle marked as 
are co-interior angles and therefore must be supplementary (add up to 180 degrees).
Therefore, we have:
Answer:
3
Step-by-step explanation:
To evaluate the expression, we have to substitute the variable in the expression, z, for its stated value. Given that z = 6, substitute 6 for the z in the expression and solve:
Thus, the answer is 3.
Answer:
The answer is A, C, and D
Step-by-step explanation:
Answer:
Mathematicians say Parentheses (P) or grouping symbols first, Exponents (E) next, then Multiplication and Division (MD) from left to right, and finally Addition and Subtraction (AS) from left to right.
Step-by-step explanation:
P
E
M/D
A/S
Answer:
The population variance and population standard deviation are used when calculating for a population while the sample variance and sample standard deviation are used when calculating for a sample
Step-by-step explanation:
A population is defined as all members of a specified group or simply Population is the whole group. A sample is a part of a population that is used to describe the characteristics, The size of a sample can be less than 1%, or 10%, or 60% of the population.
The population variance and population standard deviation are used when calculating for a population while the sample variance and sample standard deviation are used when calculating for a sample. sample variance(or standard deviation) will be slightly higher than that of the population variance(or population standard deviation) for the same problem if solved. The purpose of this little difference it to get an accurate estimate of the population‘s variance to compensate for the fact it is a sample rather than with the whole population.
