Answer:
You first work out the radius, as below:
Area = pi x radius^2
=> radius = sqrt(Area/pi)
Then, you find out circumference C.
=> C = 2 x pi x radius
Hope this helps!
:)
Answer:
4 has value of 10,000 which ten thousand place value.
Step-by-step explanation:
Given number 546210
We have to find the value of 4 in given number 546210.
We write the given number in value form as ,
546210 = 5×100000 + 4× 10000 + 6 ×1000 + 2×100 + 10
in words it is written as
Here, 4 has value of 10,000 which ten thousand place value.
Answer:
x = 20
y = 30
Step-by-step explanation:
Answer:
<u> </u><u>-1 </u>
Step-by-step explanation:
Given that:
r = sin 2θ , θ = ± π/4 , ± 3π/4
Recall that:
x = r cosθ
y = r sinθ
The differential of y with respect to x


at θ = π/4 , r = sin π/2
r = 1

where;
θ = π/4




slope of the curve (dy/dx) at theta(θ) = pi/4 is -1