Answer:
C
Step-by-step explanation:
In this question, we are asked to identity the type of sampling method that was used.
The type of sampling used here is convenience sampling.
The term convenience sampling is a type of sampling that is non-probabilistic. This means it is a sampling that is not based on probability.
A convenience sample generally contains that part of the population which is close to call and easily accessible. This means it takes it samples from population members that are available at hand and are easily reachable
Answer:
the y intercept would be at (0,-6)
Answer:
h = 6 units
Zhang major error is that he did not express the formula for finding the volume of a square base pyramid properly well. The formula was suppose to be 1/3 × base area × height. He omitted the 1/3.
Step-by-step explanation:
The square base pyramid has a base length of 9 and width of 9 . It is a square base pyramid so definitely the length of the base will be equal. The volume of the square base pyramid is given as 162 .
The formula for the volume of a square base pyramid is represented as follows.
volume = 1/3Ah
where
A = base area
h = height
volume = 1/3Ah
Base area = L²
Base area = 9² = 81
volume = 162 units²
volume = 1/3 × 81 × h
162 = 1/3 × 81 × h
162 = 27h
divide both sides by h
h = 162/27
h = 6 units
He omitted the 1/3 for the formula of the volume of a square base pyramid.
Answer:35 advance tickets were sold
30 same day tickets were sold.
Step-by-step explanation:
Let x represent the number of advance tickets sold.
Let y represent the number of same day tickets sold.
For one performance, there were 65 tickets sold in
This means that
x + y = 65
Advance tickets cost $ 35 and same-day tickets cost $ 15 and in all, and the total amount paid for them was $ 1675. It means that
35x + 15y = 1675 - - - - - - - - - - -1
Substituting x = 65 - y into equation 1. It becomes
35(65 - y) + 15y = 1675
2275 - 35y + 15y = 1675
- 35y + 15y = 1675 - 2275
- 20y = - 600
y = 600/20 = 30
x = 65 - y = 65 - 30
x = 35
