The number of miles driven varies directly with the number of hours in the car. Billy drives 171 miles in 3 hours, so he could d
2 answers:
Remember that direct variation means that you have a relationship of the form
In this case it's a special equation, namely distance=rate*time. So first we have to find the rate given the information in the problem:
Now we know that the rate is constant since Billy's distance varies directly with time. The next step is to find distance given a different amount time:
You can finish that one off!
In this case it's a special equation, namely distance=rate*time. So first we have to find the rate given the information in the problem:
Now we know that the rate is constant since Billy's distance varies directly with time. The next step is to find distance given a different amount time:
You can finish that one off!
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The arc length of the partial circle is 7.5π
<h3>Calculating arc length</h3>From the question, we are to determine the arc length of the partial circle
The length of an arc can be calculated by using the formula
Where is the length of the arc
is the angle subtended
and r is the radius
From the diagram,
θ = 270°
r = 5
Putting the values into the equation, we get
OR 7.5π
Hence, the arc length of the partial circle is 7.5π
Learn more on Calculating arc length here: brainly.com/question/16552139
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