Answer:
The correlation between sales and advertising is positive.
Step-by-step explanation:
For every $35 spent on advertising, sales increase by $1
Is FALSE, since y = 500 + 35 x $35, sales increase more than $1
Even if no money is spent on advertising, the company realizes $35 of sales
Is FALSE, if no money is spent, the sales amount to $ 500 (when X = 0)
The coefficient of correlation between sales and advertising is 0.81
Is FALSE, since R² = 0.9. The coefficient of correlation = R = 0.94, not 0.81
Answer:
![12.1 < Y < 35.1](https://tex.z-dn.net/?f=12.1%20%3C%20Y%20%3C%2035.1)
Step-by-step explanation:
Given
Sides: 11.5 and 23.6
Required
Determine the range of the third side
Let the third side with Y
<em>Two of the following conditions must be satisfied to calculate the range of the third side</em>
<em></em>![11.5 + Y > 23.6](https://tex.z-dn.net/?f=11.5%20%2B%20Y%20%3E%2023.6)
![23.6+ Y > 11.5](https://tex.z-dn.net/?f=23.6%2B%20Y%20%3E%2011.5)
![11.5 + 23.6 > Y](https://tex.z-dn.net/?f=11.5%20%2B%2023.6%20%3E%20Y)
We'll solve one after other
1. ![11.5 + Y > 23.6](https://tex.z-dn.net/?f=11.5%20%2B%20Y%20%3E%2023.6)
![Y > 23.6 - 11.5](https://tex.z-dn.net/?f=Y%20%3E%2023.6%20-%2011.5)
![Y > 12.1](https://tex.z-dn.net/?f=Y%20%3E%2012.1)
2. ![23.6+ Y > 11.5](https://tex.z-dn.net/?f=23.6%2B%20Y%20%3E%2011.5)
![Y > 11.5- 23.6](https://tex.z-dn.net/?f=Y%20%3E%2011.5-%2023.6)
3. ![11.5 + 23.6 > Y](https://tex.z-dn.net/?f=11.5%20%2B%2023.6%20%3E%20Y)
![35.1 > Y](https://tex.z-dn.net/?f=35.1%20%3E%20Y)
![Y < 35.1](https://tex.z-dn.net/?f=Y%20%3C%2035.1)
Inequalities with negative can't be used' So, we have
and ![Y < 35.1](https://tex.z-dn.net/?f=Y%20%3C%2035.1)
Rewrite inequality
and ![Y < 35.1](https://tex.z-dn.net/?f=Y%20%3C%2035.1)
Combine inequality
![12.1 < Y < 35.1](https://tex.z-dn.net/?f=12.1%20%3C%20Y%20%3C%2035.1)
Answer:
785 unit^3
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h
We know the diameter
r = d/2 = 10/2 =5
Substituting in what we know
V = pi (5)^2 (10)
= 3.14 (25) (10)
=785
Answer:
4/1 cups
Step-by-step explanation:
Since there are 4 cups of corn cups, that means 4 cups are needed for the recipe. The fraction version of this is 4/1 since 1 is always in the denominator of a whole number.
Answer:
$0.11
Step-by-step explanation:
Divide $1.95 by 18 to find how much one fish stick costs.
1.95/18 = 0.10833333
Round up because of the 8 and you get 0.11.