Answer:
The length of the side of an equilateral traingle
inches
Step-by-step explanation:
Given that the area of an equilateral triangle is given by

It can be written as
Square inches (1)
To find the length of the side s os an equilateral triangle
Given that area of an equilateral triangle is
square inches
It can be written as

square inches
It can be written as

square inches (2)
Now comparing equations (1) and (2) we get


Dividing by
on both sides we get




Therefore
inches
Therefore the length of the side of an equilateral traingle
inches
Answer: unbiased; simple random sampling
Step-by-step explanation:
From the question, we are informed that John wanted to know about the popularity of a particular movie and that he surveyed 20% of the people in 5 different theaters.
This is an unbiased sample. This is because everybody at the theaters have an equal chance of being chosen by John.
Also, it's a simple random sampling. This is because a subset of the entire population is randomly selected.
Answer:
C
Step-by-step explanation:
y intercept is -8 and it appears as though it is approaching y= -9 to the left.
the graph starts at an x intercept.
Its 15% because you have to divide 270 by 1800