x = 
distribute the parenthesis on left side of equation and simplify
5x - 2x - 2 = 
3x - 2 =
( add 2 to both sides )
3x =
+ 2 =
( divide both sides by 3 )
x =
×
= 
Answer:
she was on a call for 36 minutes
Step-by-step explanation: 6.82-2.5= 4.32 4.32/.12= 36
Answer:
The method for selecting a stratified sample is to order a population in some way and then select members of the population at regular intervals. - FALSE.
This can be re written as :The method for selecting a systematic sample is to order a population in some way and then select members of the population at regular intervals.
Explanation for stratified sampling:
In stratified sampling, the members of a population are divided into two or more strata with similar characteristics and then a random sample is selected from each strata. This way ensures that members of each group within a population will be sampled.
Explanation for cluster sampling:
The method for selecting a cluster sample is to order a population in some way and then select members of the population at regular intervals.
In cluster sampling, the population is divided into clusters, and all of the members of one or more clusters are selected.
Answer:
the answer is c. 108,000
Step-by-step explanation:
240,000×25%=60,000
240,000-60,000=180,000
180,000×40%=72,000
180,000-72,000=108,000
your answer is 108,000
Given:
The figures of triangles and their mid segments.
To find:
The values of n.
Solution:
Mid-segment theorem: According to this theorem, mid segment of the triangle is a line segment that bisect the two sides of the triangle and parallel to third side, The measure of mid-segment is half of the parallel side.
9.
It is given that:
Length of mid-segment = 54
Length of parallel side = 3n
By using mid-segment theorem for the given triangle, we get



Divide both side by 3.


Hence, the value of n is equal to 36.
10.
It is given that:
Length of mid-segment = 4n+5
Length of parallel side = 74
By using mid-segment theorem for the given triangle, we get




Divide both side by 4.


Hence, the value of n is equal to 8.