Answer:
The number 1.256 is A)rational number.
Step-by-step explanation:
- A whole number is a non-negative number without any digits behind the decimal.
- An integer is a set of negative and non negative numbers that don't have any digits behind the decimal.
- A number that can be shown as a fraction of two whole numbers is a rational number.And the numbers that are not rational are irrational numbers.
- Here, 1.256 is a fraction of whole numbers 1256 and 1000 , so it is a rational no.

- But since it has digits behind the decimal it is neither a whole number, or an integer.
Answer:
Plane R
Plane DEG
Plane FDG
Plane FEG
Step-by-step explanation:
You can name the plane by the script letter "R", and you can name the plane with any three co-linear points on the plane
Answer:
100 sir
Step-by-step explanation:
10 times 5 is 50 and plus 50 is 100
The answer is 52 hopefully this help
Answer: σ: 2.76
Step-by-step explanation:
Count, N: 5
Sum, Σx: 125
Mean, μ: 25
Variance, σ2: 7.6
Steps
look at attached pic for formula
σ^2 = 

⇒ 
⇒ 7.6
σ = 
⇒ 2.756809750418
⇒ or 2.76