(c) 20 ; each mile takes 8 minutes, therefore if you divided 160 by 8 your product would be 20
Answer:
Cluster Sampling
Step-by-step explanation:
In cluster sampling, the population is divided into several categories and random sampling is applied to the selected clusters.
This method is used when the population is not homogeneous and therefore has to be divided into several clusters.
This sampling method is prone to <em>sampling error</em> because it leaves some clusters out. On the other hand it is <em>easier</em> to implement.
Answer:
The sum of all digits in the first 25 counting numbers is 127
Hope this helps
Answer:
198 computer buyers were listed for other considerations.398 computer buyers looked for performance.
Step-by-step explanation:
We can represent the base as z and the height as 2z+6. We are going to use the formula A=1/2*b*h and solve for z
180=1/2*z*(2z+6)
360=2z^2+6z
0=2z^2+6z-360
0=2(z^2+3z-180)
0=(z+15)(z-12)
So z=-15 and 12 but it must be positive so then the base is equal to 12
When we plug this into 2z+6 we get 30 for the height
2(12)+6=30
Hope this helps
