No because he only surveyed the members of the chess club
Answer: A.
The system is consistent because the rightmost column of the augmented matrix is not a pivot column.
Explanation: a system is consistent if and only if the rightmost column of the augmented matrix is not a pivot column. Since every column of the coefficient matrix is a pivot column, none of the leading coefficients are in the rightmost column of the augmented matrix. Therefore the rightmost column of the augmented matrix cannot be a pivot column and the system must be consistent.
(2 - 2.82) ÷ 4 + 3.46
-0.82 ÷ 4 + 3.46
-.0.205 + 3.46
3.255
Im pretty sure this is correct. Correct me if I'm wrong. Hope this helps.
Answer:
z
Step-by-step explanation:
coordinate should be put as (1,2). Plot it and you will get z as answer
<h2>Time taken by Helga to wax the car is 72 minutes</h2>
Step-by-step explanation:
Let w be the work of waxing.
Rosita can wax her car in 2 hours or 120 minutes.
Time taken by Rosita = 120 minutes
Let time taken by Helga be t,
When she works together with Helga, they can wax the car in 45 minutes.
We have
Time taken by Helga to wax the car is 72 minutes
