Answer:B
Step-by-step explanation:
Given
Height of building 
Angle of depression 
Suppose distance of Point A from base of building be 
From diagram we can write




So, point A is
from base of building
Answer:
(c) Multistage sampling
Step-by-step explanation:
Multistage sampling is a technique of sampling in which the population is divided in different stages or groups with the goal of reducing the sample size at each stage.
Here, multistage sampling is being used to obtain the sample of undergraduate students in the United States.
Hence, the correct option is (c), Multistage sampling.
Answer:
6
Step-by-step explanation:
because if it needs 4 for 120 then u would divide that and get 30 then divide 180 by 30 and get 6.
P = 2L + 2W
P = 2(2x) + 2(4x + 3)
P = 4x + 8x + 6
P = 12x + 6
The correct response would be D. 12x + 6.