Answer:
Part A) The diameter of the rug is 
Part B) The radius of the rug is 
Part C) The area of the rug is 
Step-by-step explanation:
Part A) Find the diameter of the rug
we know that
The circumference of a circle (circular rug) is equal to

where
D is the diameter
we have


substitute the values and solve for D


Part B) Find the radius of the rug
we know that
The radius of a circle (circular rug) is half the diameter
we have


substitute

part C) What is the area the rug is covering?
The area of the circle (circular rug) is equal to

we have


substitute


Using finite difference, the answer is cubic. Apologies if I’m wrong
Answer:
a) he rate of change of the volume of a snowball (due to melting) is proportional to the square of the volume at time t. Initially, the snowball has a volume of 900 cm3
and V(0) = 900
where A is a real constant, it appears because it says that the change i volume (dV/dt) is "proportional" to
. Furthermore, we should assume that A is a negative number, because the volume of the snowball will decrease as the time pasese by.
(b) For an insect moving along some path, the velocity at time t is proportional to the square root of its position.

Here again appears a constant B for the "proportional" part. And i wrote the velocity as
"the rate of change of the position with respect to te time".
The answer to the question is the first, third and fifth
Answer:
we can use centeroid formula of a triangle
that is (x1+x2+x3)/3
hope that helps : )