Answer:
The answer is
Step-by-step explanation:
Assuming the snowball is a perfect sphere, then if A denotes the surface area and D the diameter then:
Differentiating wrt r we have:
We are told that and we want to find
By the chain rule we have:
∴
∴
When D=10 then
The sign (-) shows that the D is decreasing.
I believe that the answer is 120 marbles.<span />
The bank account owner is withdrawing money at the rate of $50/month. The account balance is steadily declining.
∠ Given are (x + 18)° , x° , 4x° and one Angle is 90° as per diagram
Let ,
1st∠ = (x + 18)°
2nd∠ = x°
3rd∠ = 4x°
so ,
substituting x = 12 at the place of x .
= x° + 18°
= 12° + 18 °
1st∠ = 30°
__________________________________
= x°
2nd∠ = 12°
__________________________________
= 4x°
= 4(12)°
3rd∠ = 48°
Answer:
2.5 inches
Step-by-step explanation:
the radius is half diameter