Answer:
Explanation:
The <em>possible values of r</em>, the correlation coefficient of a sequence of values, are -1 ≤ r ≤ 1.
This is, r cannot be either less than - 1 or greater than 1.
A correlation coefficient r = -0.1 denotes a very weak negative correlation. A correlation coefficient r = - 0.75 means a strong negative correlation. A correlation coefficient r = 0.5 indicates a moderate positive correlation. A value of r = 1.2 is not possible: r can neve be greater than 1.
Answer:
The system that represent the scenario is
The solution in the attached figure
Step-by-step explanation:
Let
x-----> the acres of corn
y----> the acres of cotton
we know that
------> inequality A
-----> inequality B
using a graphing tool
the solution is the shaded area in the attached figure
the answer would be 8. z= 8
Answer:
4.2
Step-by-step explanation:
Answer:
Part 1) The value of x is ![2\sqrt{7}\ in](https://tex.z-dn.net/?f=2%5Csqrt%7B7%7D%5C%20in)
Part 2) The value of y is ![\sqrt{21}\ in](https://tex.z-dn.net/?f=%5Csqrt%7B21%7D%5C%20in)
Step-by-step explanation:
Part 1
Find the value of x
Applying Pythagoras Theorem
![8^{2}=x^{2} +6^{2}](https://tex.z-dn.net/?f=8%5E%7B2%7D%3Dx%5E%7B2%7D%20%2B6%5E%7B2%7D)
![x^{2}=8^{2}-6^{2}](https://tex.z-dn.net/?f=x%5E%7B2%7D%3D8%5E%7B2%7D-6%5E%7B2%7D)
![x^{2}=28](https://tex.z-dn.net/?f=x%5E%7B2%7D%3D28)
![x=2\sqrt{7}\ in](https://tex.z-dn.net/?f=x%3D2%5Csqrt%7B7%7D%5C%20in)
Part 2
Find the value of y
Applying Pythagoras Theorem
![7^{2}=x^{2} +y^{2}](https://tex.z-dn.net/?f=7%5E%7B2%7D%3Dx%5E%7B2%7D%20%2By%5E%7B2%7D)
substitute the value of x
![7^{2}=28 +y^{2}](https://tex.z-dn.net/?f=7%5E%7B2%7D%3D28%20%2By%5E%7B2%7D)
![y^{2}=7^{2}-28](https://tex.z-dn.net/?f=y%5E%7B2%7D%3D7%5E%7B2%7D-28)
![y^{2}=21](https://tex.z-dn.net/?f=y%5E%7B2%7D%3D21)
![y=\sqrt{21}\ in](https://tex.z-dn.net/?f=y%3D%5Csqrt%7B21%7D%5C%20in)