Answer:
6
Step-by-step explanation:
Answer:
2 & 20
Step-by-step explanation:
100 x 2= 200
20 x 10= 200
Answer:
2.5
Step-by-step explanation:
you can use pythag theorem and divide c by two:
-3^2+4^2=c^2
9+16= 25
c=5
however, 5/2=2.5
It will take her 6 hours because
3/4=6/8 hours
1/8= 1 hour
I hope this was helpful
Let R be the greater radius and r be the smaller radius
A) Area of the sidewalk = R^2 - r^2 - This can be the expression
B) = 3.14
=(R^2-r^2)
=(11^2-9^2)
=(121-81)
=*40
That was the simplified expression
Answer = 3.14 * 40 = 125.6m^2
