Mean= (5+6+5+6+9)/5= 7.2 coins
Explanation: The mean is the average of a data set. Add the numbers from the data set and divide by how many numbers.
Answer:
Length of diagonal of picture = 15.30 inches
Step-by-step explanation:
Given that:
Side lengths of picture frame = 12 inches by 9.5 inches
As the picture is rectangular, the diagonal will form hypotenuse of right angled triangle.
Using Pythagorean theorem;
a²+b²=c²
Putting the values in the theorem

Taking square root on both sides

Hence,
Length of diagonal of picture = 15.30 inches
Answer:400
Step-by-step explanation:
3 hours: 400 times 2=800
6 hours: 800 times 2=1600
9 hours: 1600 times 2=3200
12 hours: 3200 times 2=6400
15 hours: 6400 times 2= 12800
18 hours: 12800 times 2=25,600
21 hours: 25,600 times 2= 51200
24 hours: 102,400