Answer:
It honestly does not matter, but I'd choose the ring because I feel like it is more pleasant to look at.
Step-by-step explanation:
We need to find the area of both shapes to compare:
3/4 of a circle:
A = 6^2pi
= 36pi
36pi(0.75) = 27pi
Ring:
A = 36pi
A2 = 3^2pi = 9pi
36pi-9pi = 27pi
As you can see, the two areas are the same.
Hope this helped! :)
Answer:
It's choice B.
Step-by-step explanation:
When r= -11,
x^2 + 8x - 33 = (-11)^2 - 88 - 33
= 121 - 88 - 33
= 0
- so x = -11 gives a zero value and is a solution to the equation.
Answer:
3(a-b) and 3a-3b. Equivalent
2a(2+b) and 4ab. Not equivalent
Step-by-step explanation:
hope this helps:)
Answer:
18 since 12 x 2 = 24 so 9 x 2 = 18
Step-by-step explanation:
Parameterize 
by
with 
and 
. Take a normal vector to ,
which has norm
Then the integral of 
over is
