Problem Statement
We are asked to find the critical t-value for a confidence level of 80% and sample size of 17.
Method
To solve this, we simply need to do two things:
1. Calculate the degrees of freedom:
Answer:
Obtuse triangle.
Step-by-step explanation:
The rule to know what type of triangle it is, you do A^2 + B^2 and if it is less than C^2, then it is obtuse. If it is equal, then it is right, and if it is more than, it is acute.
Do this equation fo 7, 8, and 12
7^2 + 8^2 =? 12^2
49 + 64 =? 144
113 < 144
113 is less than 144 which means that it is an obtuse triangle
This is a poorly described problem because books are different lengths meaning they possess different number of pages.
With that being said let's assume all books have exactly the same number of pages.
The formula to calculate how many books can he read in 12 days it's obvious:
which is
and then
. Hope this helps!
EXPLANATION
Let's see the facts:
Number of people: 25
Scale factor = 2.9
The shop would require:
Answer: the shop would requires 8.62 more times of cream cheese.
-x is the slope of the equation.