C=2*pi*r
2*3.141592654*2.5
Answer: 15.7 cm
Answer: The mean is 49.
Step-by-step explanation:
First add up all the numbers.
48 + 51 + 48 + 48 + 50 = 245
Then divide 245 by the amount of numbers are in your data (there are five numbers).
245 ÷ 5 = 49
Answer:
The distance between the points is 5 units
Step-by-step explanation:
I used distance formula for the question using two points
I
Step-by-step explanation:
Let the two numbers be x and y
x+y =5 ---1
x-y =-3 ---2
Rearrange equation 1
x =5-y
Substitute x in the second equation
(5-y)-y =-3
5-y-y =-3
5-2y =-3
Collect like terms
5+3 = 2y
8 = 2y
Divide both sides by the coefficient of y (2)
8/2 = 2y/2
4 = y
y= 4
Substitute y in equation 1
x+4 =5
Subtract 4 from both sides
x+4-4 = 5-4
x+0 = 1
x= 1
The two numbers are 1 and 4
Answer:

Step-by-step explanation:
To determine the Z - score, it is calculated as follows:

Then:

It means that there are more than 3 standar deviations below the advertised mileage.