The perpendicular bisector of a line segment is a line perpendicular to the segment that passes through its midpoint. What is th
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The graph of amount Tom owes his friend after a given time, <em>t</em>, is a straight line graph with a negative slope
Please find attached the required example of a possible graph that shows the amount Tom owes his friend
Reason:
Let <em>A</em> represent the amount of money Tom buys the boat with, let <em>x</em>
represent the amount of equal payment made and <em>y</em> represents the
amount Tom owes the friend after a given time, <em>t</em>, we have;
y = A - x·t
Therefore, the slope of the graph formed is <em>-x</em>, the y-intercept of the graph
is <em>A</em>, from which the graph that gives the amount of money, in dollars, Tom
owes his friend, as a function of time, in years can be presented as follows,
using example values;
A = $25,000 (Amount the Tom agrees to buy the boat)
x = $5,000 (Amount Tom pays each year for the boat)
By plugging in the above example values, the attached graph can be drawn using MS Excel
Learn more about plotting of straight line graphs here:
Answer:
Therefore the circumference of the circle is
Step-by-step explanation:
Let the side of the square be s
and the radius of the circle be r
The perimeter of the square is = 4s
The circumference of the circle is =2πr
Given that the length of the wire is 20 cm.
According to the problem,
4s + 2πr =20
⇒2s+πr =10
The area of the circle is = πr²
The area of the square is = s²
A represent the total area of the square and circle.
A=πr²+s²
Putting the value of s
For maximum or minimum
Differentiating with respect to r
Again differentiating with respect to r
> 0
For maximum or minimum
Therefore at , A is minimum.
Therefore the circumference of the circle is