The appropriate domain and the range are x > 0 and y > 0, respectively and the speed is 2.5 miles per hour in order to travel 20 miles in 8 hours.
<h3>How to determine the reasonable domain?</h3>
The function is given as:
xy = 20
The value of x and y cannot be negative and they cannot be 0.
This means that the domain and the range are x > 0 and y > 0, respectively
<h3>The graph of the function</h3>
See attachment for the graph of xy = 20
<h3>The estimate of the speed</h3>
We have:
Distance = 20 miles
Time = 8 hours
The speed is calculated as;
Speed = Distance/Time
This gives
Speed = 20/8
Evaluate
Speed = 2.5 miles per hour
Hence, the speed is 2.5 miles per hour in order to travel 20 miles in 8 hours.
Read more about inverse variation at:
brainly.com/question/6499629
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Answer:
$44.19
Step-by-step explanation:
15.98-1.25=14.73
14.73*3-44.19
Answer:
the slope is 11 and the y intercept is 6 m=11 b=6
Answer:
95.49 g
Step-by-step explanation:
D = m/v
Looking for mass so isolate m to form equation format
D × V = m
Plug in numbers
.7892g/mL × 121.0 mL = 95.4932 g
Only g and not g/mL because the mL cancels each other out. It's easier to see if you rewrite it on paper.
Round to sig figs
Both original numbers hold 4 sig figs
95.49 g