Answer:
Larger shaded area = 48pi m^2 and
the small circle has area 4pi m^2.
If you require the as decimal values they are
150.80 m^2 and 12.57 m^2 to the nearest hundredth.
Step-by-step explanation:
The area of the whole circle = pi r^2 = pi 8^2 = 64pi.
The area of the middle sized circle = pi 4*2 = 16pi.
So the area of the larger shaded region
= 64pi - 16pi = 48pi m^2.
The area of the small circle = pi r^2 = 2^2 pi = 4pi m^2.
Let X & Y be the two integers
X+Y=18 Y = 18-X
XY = 80
We can substitute 18-X for Y in the equation XY = 80
X(18-X) = 80
Distributing
18X - X2 = 80
Subtract 80 from both sides so that the equation is equal to 0
-X2 + 18X - 80 = 0
Multiply (or divide by -1 so that the leading coefficient is positive, not negative)
X2 - 18X + 80 = 0
We can factor this quadratic
(X-10)(X-8) = 0
Setting each factor equal to 0 we can solve for X.
X-10 = 0 X-8 = 0
X = 10 X = 8
The two integers are 8 and 10.Answer:
Step-by-step explanation:
Hello from MrBillDoesMath!
Answer:
5.24
Discussion:
Circumference of circle = 2 Pi r
Circumference for 300 angle slice
= (300/360) ( 2 Pi r)
= (600/360) Pi
= (15/9) Pi
= 5.24 (calculator: 5.2359877559829887307710723... )
Thank you,
MrB
