As we knw that the dr/dt = 2
And The area of the circular slick is given by formul
A = (pi)r^2.
Now lets take derivative:
<span>dA/dt=2πrdr/dt
As we knw that radius is 25
so</span><span>dA/dt=2π(25)(2)=100π
which is equal to
=314.16 per minute this is how area is increasing
now for part b
</span><span> t = 4, the radius will have increased to 8 m.
now we will put the values in formula dr/dt
</span>so it will be.dA/dt=2π(8)(2)
=32π
=100.53 is the answer
hope it helps
The answer is 44 degrees
The sum of all of the angles in a pentagon is 540 degrees
Answer:
1. x^8
2. x^8
3. 1024
4. -21a^4
5. z^10
6. -9x^7
7. 42r^7
8. b^7
9. 8a^11
10. 12p^12
Step-by-step explanation:
(X * 6) + 9 = 8
6x + 9 = 8
6x + 9(-9) = 8(-9)
6x = -1
6x/6 = -1/6
x = -1/6
