Answer:
t=0.57h
Step-by-step explanation:
Answer:
Step-by-step explanation:
1. 
2. 
3. b =
Can't be simplified.
The domain of the third piece of the graph is contained in interval <u>B. (12, 20)</u>.
<h3>What is the domain of a graph?</h3>
The domain of a graph consists of all the input values shown on the x-axis.
The input values (domain) are shown on the x-axis, unlike the range, whose output values are shown on the y-axis.
Therefore, the domain comprises the independent variables or values, which can be determined using the function, y = f(x).
Thus, the domain of the third piece of the graph can be determined in interval <u>B. (12, 20)</u>.
Learn more about domain and range at brainly.com/question/10197594 and brainly.com/question/2264373
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2x-2+x+5=90
3x+3=90
-3 -3
3x/3 =87/3
x=29
