Answer: 0.2
Step-by-step explanation: Decimals represent fractions with denominators of 10, 100, 1,000, and so on.
Therefore, in order to write 1/5 as a decimal, we must first
find a fraction equivalent to 1/5 with a denominator of 10.
So we multiply the numerator and denominator of
1/5 by 2 to get the equivalent fraction 2/10.
Now we have a fraction that can be written as a decimal.
Since the tenths place is 1 place to the right
of the decimal, we can write 2/10 as 0.2.
Answer:
3770 mm.
Step-by-step explanation:
The diameter of of the wheels is 60mm, that means the radius is 30mm.
Now for one revolution of the wheels, they cover the distance of on the ground.
For 20 revolutions, the distance covered will be 20 times this.
Thus
Which is our answer.
Let p be the population proportion of parents who had children in grades K-12 were satisfied with the quality of education the students receive.
Given : Several years ago, 39% of parents who had children in grades K-12 were satisfied with the quality of education the students receive.
Set hypothesis to test :
Sample size : n= 1055
Sample proportion :
Critical value for 95% confidence :
Confidence interval :
Since , Confidence interval does not contain 0.39.
It means we reject the null hypothesis.
We conclude that 95% confidence interval represents evidence that parents' attitudes toward the quality of education have changed.
