A rational number is a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers. The number 8<span> is a rational number because it can be written as the fraction </span>8/1. <span>In mathematics, a </span>rational number<span> is any </span>number<span> that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a </span>rational number. ... A real number<span> that is not </span>rational<span> is called irrational.</span>
Answer:
-4w^3
Step-by-step explanation:
Answer:
Select any expresion that equals 50.
Step-by-step explanation:
Divide 4500 by 90 and find all the expresions that equal 50.
The difference starts off by 7. Then it continues to double. Then the answer is 14, 28, 42. The answer doubles every time.
Answer:
The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so 
Now, find M as such
In which 
is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the mean subtracted by M. So it is 4.1 - 0.07 = 4.03 pounds
The upper end of the interval is the mean added to M. So it is 4.1 + 0.07 = 4.17 pounds
Rounded to one decimal place
The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.
