Step-by-step explanation:
I would suggest that this is cluster sampling.
The teacher is selecting a cluster of the population at random to sample.
This is a method of probabalistic sampling.
Answer:
Delia started working at 9:50 A.M.
Step-by-step explanation:
We are given that:
Delia worked for 45 minutes on her oil painting.
She took a break at 10:35 A.M.
We have to determine at what time Delia start working on the painting.
35 minutes before 10:35 A.M. is 10 A.M.
Now, 45-35=10 minutes are left
now 10 minutes before 10 A.M. is 9:50 A.M.
Hence, Delia started working at 9:50 A.M.
6/100+11/100+19/100= 36/100. 36/100 in simplest form is 9/25
Answer:
3.6 x 10^6
Step-by-step explanation:
(4 ×10^10)(9×10^-5)
= (4 x 9) x 10^(10 - 5)
= 36 x 10^5
= 3.6 x 10^6 <-------in scientific notation
Answer:
1024m
Step-by-step explanation:
128÷4=32
32×32=1024