Given are the seven roads (say A, B, C, D, E, F, and G) that lead to the top of a hill. We need to select a road to reach the top and then it says to select different road to get back down.
First of all, we can select any one road from seven roads. So, we have 7 ways to go to the top.
After reaching the top, this first road gets eliminated from selection and now we have only Six roads to come downhill. So, we have 6 ways to get back down.
So, total number of ways = 7 × 6 = 42 ways.
So, there are 42 different ways are there to reach the top and to get back down, if the uphill and downhill roads are different.
Answer:
22 cm squared
Step-by-step explanation:
You have two shapes here. Area is base*width.
5 * 2 is 10 cm squared
6 * 2 is 12 cm squared
10 + 12 is 22 cm squared
So you have a total area of 22 cm squared.
as far as I can tell, is just a matter of going around the circle many or infinite times around.
so 6,31° is the first point, the next point will be one-go-around, 6, 31+360 => 6, 391°
then the next will be 6, 391+360 => 6, 751° and so on.
so we can say is (6, 31° ±360°n), n ∈ ℤ.
Answer:
28
Step-by-step explanation:
Answer:
Set of hypothesis.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 20.5 oz
Sample mean, 
= 20.4 oz
Sample size, n = 50
Population standard deviation, σ = 2.25 oz
First, we design the null and the alternate hypothesis
We use One-tailed z test(left tailed) to perform this hypothesis.
Formula:
Putting all the values, we have
Based on the significance level, we can make our decision and complete the hypothesis testing.
We may accept the null hypothesis or fail to accept depending on different significance level.
