Answer:
The diameter decreases at a rate of 0.053 cm/min.
Step-by-step explanation:
Surface area of an snowball
The surface area of an snowball has the following equation:

In which d is the diameter.
Implicit differentiation:
To solve this question, we differentiate the equation for the surface area implictly, in function of t. So

Surface area decreases at a rate of 3 cm2/min
This means that 
Tind the rate (in cm/min) at which the diameter decreases when the diameter is 9 cm.
This is
when
. So




The diameter decreases at a rate of 0.053 cm/min.
Answer:
Concept: Inverse Functions
- We want the inverse of a root function which is x^1/2
- Now we combine that result to get

- Rate brainlist
Answer:
The answer would be 2.
Step-by-step explanation:
U just subtract 39.21 -36.4= 2.81
That is known when there is no like terms to be added, and for the case of a fractional function: there is no more common factors between the numerator and the denominator.
Hope that help
Answer:
Total Cost = $1.47
Step-by-step explanation:
Length of the wooden board = 
Cost of the wooden board = $0.25 per foot
Total Cost = Cost per foot X Total Length in foot
= 
Total Cost = $1.47