Real numbers are all the rational numbers such as -7 and 4/3 and all irrational numbers. Real numbers are used mainly in counting and are used in measurement which is always present in real-world situations. These numbers help us to quantify things around.
Answer:
The consecutive integers are:
18, 19, 20
Step-by-step explanation:
Let the three consecutive integers be:
x
x+ 1
x+2
Now according to given conditions:
x + x+1 +x + 2 = 21 + 2x
Adding like terms:
3x + 3 = 21 + 2x
Taking terms with x on left side and constants on right side
3x - 2x = 21 - 3 (Sign of transferred terms will be changed)
x = 18
So the consecutive terms become:
x = 18
x + 1 = 19
x + 2= 20
I hope it will help you!
Answer:
The null hypothesis
The alternative hypothesis
Step-by-step explanation:
From the question we are told that
The mean is
The standard deviation is
The sample size is n = 25
The sample mean is
Generally
The null hypothesis is : That the mean of the Arsenic blood concentrations in healthy individuals is
i.e
The null hypothesis
The alternative hypothesis is : That the mean of the Arsenic blood concentrations in healthy individuals is greater than
The alternative hypothesis
Answer:
The best estimate for the given calculation is 2.8.
Step-by-step explanation:
To determine the correct option regarding the result of this calculation, the mathematical resolution of the same must be developed:
-14 x 1 /9 x (-2 x 9/10) = X
-14 x 1 / 9 x (-18 / 10) = X
-14 x 1 / 9 x -1.8 = X
-14 / 9 x -1.8 = X
-1.555555 x -1.8 = X
2.8 = X
Therefore, the best estimate result for this mathematical operation is 2.8.