Yes it is the same. 1/4 +1/4 = 1/2. so 9/10-1/2=9/10-1/2
17.76(5) = 88.15 + 27.52 = 115.67
Answer is A
The min or max of a parabola/quadratic function is the vertex
for
y=a(x-h)²+k
the vertex is (h,k)
so
vertex/min is at (-1,2)
h=-1
k=2
y=a(x-(-1))²+2
y=a(x+1)²+2
find a
given, (2,20) is on the graph
20=a(2+1)²+2
20=a(3)²+2
20=9a+2
minus 2 both sides
18=9a
divide by 9
2=a
y=2(x+1)²+2 is da equation
3rd one
f(x)=2(x+1)²+2
Answer:
A ≈ 530 cm²
Step-by-step explanation:
The swept area equals the total area covered by the blade minus the unswept area.
The area of a sector with radius r and angle θ is:
A = (θ / 360) πr²
So the swept area is:
A = (θ / 360) πR² − (θ / 360) πr²
A = (θ / 360) π (R² − r²)
A = (150 / 360) π (21² − 6²)
A ≈ 530 cm²
Answer:
a=95.0 in^2
Step-by-step explanation:
The area of a circle is:
a=
r^2
First, we must find the radius
r=d/2
r=11/2
r=5.5
Substitute 5.5 in for r in the formula
a=5.5^2
a=30.25
Substitute 3.14 in for pi
a=3.14*30.25
a=94.985
Rounded to the nearest tenth:
a=95.0 in^2
Hope this helps! :)
