Answer:
15
Step-by-step explanation:
z2 - 2z + 15
(15)2 - 2(15) + 15
30 - 30 + 15
0 + 15
15
If you do 81 x 9 which equals 729. If you want to check, you do 729 divided by 9 and you get 81.
Area=pi times radius^2
area=36pi
36pi=pi times radius^2
divide both sides by pi
36=radius^2
square root both sides
6=radius
2radius=diameter
2 times 6=12
radius=6
diamater=12
the answers area A and D
(if you know your radius and diameter, you would know that diameter is 2 times radius and you could eliminate 2 choices imedietly (B and C))
Area= length(width)
1/5=1/3(length)
Length= 1/5(3/1) or 1/5 divided by 1/3
Length= 3/5 cm
Therefore, the length of the rectangle is 3/5 cm.
Hope this helps!