Step-by-step explanation:
1. Arrange all the numbers in ascending order.
2. Since there are 10 numbers, there will be 2 numbers in the middle, add those two middle numbers and divide by 2.
3. The result is your answer.
arrangement in ascending order
6,9,10,12,13,14,18,19,20,25
n = 10
median = 10 + 1 )/2 = 5.5 item =( 13 + 14 )/2 = 13.5
Answer:
h = √6 units
b = √9 units
A = b*h/2 = √6·√9 /2 = √(6·9)/2 = √(2·3·3·3)/2 = 3√3 /2 units ²≈ 2.6 units²
The third one
b=7
x=-5/7
