4.3996
42.097
43.001
414.05
4297.8
Answer:
Area = 18 cm^2
Step-by-step explanation:
1. We can do 360°/80°=4.5
2. To find area of total circle we can do π*(radius)^2= π*(9)^2=81 π
3. Since the shaded region is 4.5 of the whole circle we can do 81/4.5 to find the area of the shaded region.
4. Area = 18 cm^2
For this case we have the following expression:
1 / z = (4/5) / (8)
Rewriting we have:
1 / z = 4/40
1 / z = 1/10
Clearing the value of z we have:
z = 10
Answer:
The value of z for this case is given by:
z = 10
Answer: a) 17767 b) 32860 c) 13860
Step-by-step explanation:
a) 91+491(12)(3)=17767
b) 31000(1.06)=32860
c) 32860-19000=13860