Answer:
15
Step-by-step explanation:
Depth of well = No. of turns × length of one turn
Given: Depth of well = 9.89m = 989cm [1m = 100cm]
Let number of turns be x
Length of one turn = 2πr or π×diameter
Now , 989=x×π×21
989=x×(22/7)×21
x=989×7/(22×21)
x=14.98 ≈15 turns
[Number of turn never be in decimals]
Hence number of 15 complete turns of the handle required to bring up the bucket
A coefficient is a number being multiplied by a variable. For example, the 3 in 3x is being multiplied by x.
CF is a radius = 7.5 units
To find GC we will use the Pythagorean theorem.GC² = 10² + 7.5²
GC² = 100 + 56.25GC² = 156.25GC = √ 156.25GC = 12.5
GF = 12.5 + 7.5 = 20
Answer: 20 units
25/19 = 1.31589474
.0131589474%
Answer:
1) 8
2) the median of the scores is 81
3) So, <u>8</u> students scored in the 70s, and the median score is<u> 81</u>
Step-by-step explanation:
1) the number of numbers listed is how many numbers there are
- EX: 4| 1, 2, 5, 6 (where 4|1 equals 41)
- there are four numbers listed: 41, 42, 45, 46
2) the median is the middle number! when you list all of the numbers, the one in the middle is the median!
- EX: 2, 4, 5, 8, 10
- the median would be 5! why? because it's in the middle!
let me know if any of this is confusing and i'll try to explain it further :)