Answer:
10.2π
Step-by-step explanation:
Given data
Area of circle= 81 ft^2
Also, the expression for the area of a circle is
A=πr^2
substitute
81=3.142*r^2
r^2= 81/3.142
r^2= 25.77
square both sides
r= √25.77
r= 5.1
Also, the expression for the circumference is
C= 2πr
substitute
C= 2*π*5.1
C= 10.2π
Hence the circumference is 10.2π
I believe it would be dilated by 3/4
If you think of a rectangle, let’s say it is 8 by 4, the perimeter of this rectangle would be 24.
Now if you dilate the side values, you get 6 by 3 and the perimeter equals 18
So you then get 18/24 which is equal to 3/4
Hope this is right and makes sense! Have a good day!
Answer:
The answer is 126.
Step-by-step explanation:
If you multiply 2*9 first, you get 18. Then multiply 18 by 7. The answer will be 126. I hope this helps.
For 10 rows, she takes = 12 min.
So, for 1 row, she'll take = 12/10
Now, for 15 rows, it would be: 12/10 * 25 = 12/2 * 5 = 60/2 = 30
So, Your Final Answer would be 30 minutes
Hope this helps!
4/7 is the answer.
I cant reall explain becuase it will take forever xD