Answer: Consider a power set 
of real numbers.
The subsets of the power set are as follows:-
1. Natural number(
)={1,2,3,4,5,....}
2.Whole numbers
={0,1,2,3,4,......}
3.Integers(
)={.......-3,-2,-1,0,1,2,3,....}
4.Rational numbers(
)=It contains all of the above subsets and fractions (where denominator ≠ 0) ,terminating and repeating decimals.
5.Irrational numbers=It contains numbers which cannot be expressed as the ratio of integers, and they are non-repeating, non-terminating decimals.
Answer:
Henry is 5kg short of cement.
Step-by-step explanation:
4:3:1
Cement : Sand : Gravel
We can also write the ratio as:
4 x Gravel : 3 x Gravel : 1 x Gravel
Therfore a logical "x" would be the amount of gravel.
If we substitute gravel with x and put it in an equation we get:
4x+3x+x=120
8x=120
x=120/8
x=15
This way we can check if each value is correct.
x = Weight of Gravel = 15kg Correct
3x = Weight of Sand = 45kg Correct
4x = Weight of cement = 60kg WRONG!
The actually weight of cement is 55kg.
Therefore Cement is 5kg short.
M = -1 because you subtract 4 from +4 and from 1. you get -3 and then divide -3 by 3 and you get -1
Answer:
y = 67 degrees
x = 86 degrees
z = 94 degrees
Step-by-step explanation:
This is easy...
38 + 56 = x
94
180 - 94 = 86
86 + 38 + 56 = 180
so x = 86 degrees
___________________
180 - 86 = 94
z = 94
___________________
94 + 19 = 113
180 - 113 = 67
67 + 94 + 19 = 180
so y = 67 degrees
