Answer:
The sample size is
Step-by-step explanation:
From the question we are that
The standard deviation is ![\sigma = 5.6 \ hours](https://tex.z-dn.net/?f=%5Csigma%20%3D%20%205.6%20%5C%20%20hours)
The margin of error is ![E = 0.45](https://tex.z-dn.net/?f=E%20%3D%200.45)
From the question we are told the confidence level is 98% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of
is
Generally the sample size is mathematically represented as
=>
=>
Answer:
A. 5 in.
Step-by-step explanation:
The formula for the volume of a cone is :
![V= \pi r^{2} \frac{h}{3}](https://tex.z-dn.net/?f=V%3D%20%5Cpi%20%20r%5E%7B2%7D%20%5Cfrac%7Bh%7D%7B3%7D)
so
![180 in.^{3} = 3.14* 36* \frac{h}{3} \\180 in.^{3} = 113.04 * \frac{h}{3}\\3 * 180 in.^{3} = 113.04 * \frac{h}{3} * 3 \\\\\\\](https://tex.z-dn.net/?f=180%20in.%5E%7B3%7D%20%3D%203.14%2A%2036%2A%20%5Cfrac%7Bh%7D%7B3%7D%20%5C%5C180%20in.%5E%7B3%7D%20%3D%20113.04%20%2A%20%5Cfrac%7Bh%7D%7B3%7D%5C%5C3%20%2A%20180%20in.%5E%7B3%7D%20%3D%20113.04%20%2A%20%5Cfrac%7Bh%7D%7B3%7D%20%2A%203%20%5C%5C%5C%5C%5C%5C%5C)
![540 / 113.04 = 113.04 h /113.04\\h = 4.8 in](https://tex.z-dn.net/?f=540%20%2F%20113.04%20%3D%20113.04%20h%20%2F113.04%5C%5Ch%20%3D%204.8%20in)
When you round you get
h= a. 5 in.
Answer:
an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable is called polynomial. A polynomial with real coefficients is a product of irreducible polynomials of first and second degrees.
Answer:
602.42 million
Step-by-step explanation:
I know the answer is 602.42 million because I used addition and subtraction.
First, I knew there was 5.66x 107 million students. So, I multiplied 5.66 and 107, and I got 605.62 million. I knew there were 3.2 million teachers in the US. Next, I subtracted 3.2 million from 605.62 million.
605.62-3.2=602.42
So, there are 602.42 million more students than teachers in the United States.