Answer:
a
Step-by-step explanation:
6^2+8^2=100
sqrt of 100 = 10
Start off by combining like terms, then get x by itself.
Lemme know if you still need help.
Answer: Cluster sampling.
Step-by-step explanation:
- Cluster sampling is a sampling technique in statistics in which the researcher splits the entire population into different groups called clusters.
- After that he randomly select a sample from the clusters from the population and survey all elements of sampled clusters.
- Researcher performs his analysis on data from the sampled clusters.
In the given situation Greyhound Lines randomly selects 90 buses during a certain week and surveys all passengers on the buses.
Here, week= Cluster
Buses = Elements
Therefore , the type of sampling is used = Cluster sampling.
Answer:
288 cubic feet
Step-by-step explanation:
add the 3 blocks.
block 1: 12*6*2=12*12=144
block 2: (12-4)*2*6=8*2*6=8*12=96
block 3: (12-4-4)*6*2=4*12=48
add them up:
144+96+48
288 cubic feet
with help of calculator
