Answer:
(B)Stratified
Step-by-step explanation:
Stratified sampling refers to a sampling method in which the entire population is first divided into groups/strata before a random sample is taken from each strata.
The school population in this case has been divided into these strata,
- Sophomore class
- Junior class; and
- Senior class
From these classes, a random sample of 49,39 and 48 students respectively was then taken,
Okay so there is like no-way i am not going to be giving you the answer but i will describe a real world situation for it.
Last year Kelly had a balance of -200 she then told four of her friends that she need to raise her balance from -200. If 4 of Kelly's friends gave her the money how much money will she have left to raise her balance?
Okay so there you go hope it helped!
| | is always positive so |20| is 20
Answer:
≈ 125.66 cm²
Step-by-step explanation:
The area (A) of the sector is calculated as
A = area of circle × fraction of circle
= πr² × 
= π × 8² × 
= 64π × = 8π × 5 = 40π ≈ 125.66 cm² ( to 2 dec. places )
1. Shortly, 24 = 75%*32, because you are paying for 3 out of 4 cans (75% out of 100%)
2.
32 = (3 purchased +1 free )*X times
X = 8, Purchased = 3*x = 3*8=24
