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1 answer:
Answer:
Option C. The open and closed circles are reversed and the graph shifts up.
Step-by-step explanation:
From the graph of the functions (Attached below) you can check that for the interval 0 ≤x<1 the floor function takes the value 0 everywhere, also it has closed brackets at 0 and open brackets at 1.
On the other hand for the interval 0<x≤1 the ceiling function takes the value 1, also it has open brackets at 0 and closed brackets at 1.
For that reason we conclude that the open and closed circles are reversed and the graph shifts up.
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To answer this question, we have to follow the next steps:
1. Subtract 13 to both sides of the equation:
2. Divide the resulting equation by 5 to both sides of the equation:
Therefore, the value that solves this equation is W = 21/5 or W = 4.2 (using a decimal expression.)