Answer:
17x +4
[line]
2
Step-by-step explanation:
Answer: x=3, p/2,-p/2
Step-by-step explanation:
it's hard to explain, so let me know if you really want me to explain.
Answer:
Cluster sampling
Step-by-step explanation:
Cluster sampling refers to the sampling that is used in market analysis. It is used when a researcher can not obtain information as a whole for the population but may obtain information through the groups or clusters
In the given case since andrew divides the residents through regions so this reflected the cluster sampling method
Answer:

Step-by-step explanation:

Solve -8x-8y=0 for x




Substitute -1y for x




Substitute -2 for y



Answer:
Denote O as center of circle, draw OA, OC.
As property of tangent line from outside of circle (angle OAD = angle OCD = 90 deg):
=> AOC + D = 180
Moreover, angle AOC = 2 x angle B = 2 x 65 = 130
=> D = 180 - 130 = 50 deg
Hope this helps!
:)