Put the coordinates of the point in for x, y, and z and see what the new constant is.
Your plane is
5x +4y +2z = -31
Product means multiply
10 * q
She should add 48 ounces of of seltzer water because it will allow at least 10 servings. 32 ounces would only be enough to make 8.88 servings
Answer:
Option d.
Step-by-step explanation:
The equation of the line of least squares is given as

where
is the yield of wheat (bushels per acre) and x is the rainfall (in inches).
We need to find the expected number of inches of rain if the yield is 60 bushels of wheat per acre.
Substitute
in the given equation.

Add 9.12 on both sides.


Divide both sides by 4.38.


The expected number of inches of rain is 15.78.
Therefore, the correct option is d.
The answer is 8.4275. Attached is the steps.
I apologize for my sloppy handwriting.