Step-by-step explanation:
i think the answer is 1/9
Answer:
1/2pi
Step-by-step explanation:
Since the formula for circumference is 2*pi*r and we know the R=1 so the of the whole circle is 2pi. This is a quarter of a circle so the answer is 1/2pi
Suppose we want to know the total cost of buying x toys and we know that each toy costs $2. The relationship between the cost and the number of toys is
C(x) = 2x
If we purchase 6 toys, the cost would be
C(6) = 2*6 = $12
This is an example where it's adequate to use a single variable (or unknown) to find the value of another variable.
Now suppose we want to know the total cost of buying x toys for $2 each and include the tax rate in the calculations.
If we know the tax rate r, we can compute the total cost as
C(X,r) = 2x*(1 + r/100)
For example, to purchase x=6 toys and the tax rate is r=8%, the total cost is:
C(6,8) = 2*6*(1 + 8/100)=$12.96
If we had tried to calculate this cost without the use of two unknowns, it would have not been possible.
Thus, the pattern to use one or two variables depends on how many factors determine the final result.
Answer:
Step-by-step explanation:
we know that
The perimeter of the figure is equal to the perimeter of semicircle plus the perimeter of quarter circle plus two times the length of 
plus two times the length of 
<u>Find the perimeter of semicircle</u>
we know that
The circumference of a semicircle is equal to
we have
substitute
<u>Find the perimeter of a quarter of circle</u>
we know that
The circumference of a quarter of circle is equal to
we have
substitute
<u>Find the perimeter of the figure</u>
